Pressure equipment integrity under simultaneous effect of fatigue loading and temperature

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Pressure equipment integrity under simultaneous effect of fatigue loading and temperature (en)
Интегритет опреме под притиском при истовременом деловању замарајућег оптерећења и температуре (sr)
Integritet opreme pod pritiskom pri istovremenom delovanju zamarajućeg opterećenja i temperature (sr_RS)
Authors

Publications

Numerical determination and experimental validation of the fracture toughness of welded joints

Hemer, Abubkr; Milović, Ljubica; Grbović, Aleksandar; Aleksić, Bojana; Aleksić, Vujadin

(Pergamon-Elsevier Science Ltd, Oxford, 2020)

TY  - JOUR
AU  - Hemer, Abubkr
AU  - Milović, Ljubica
AU  - Grbović, Aleksandar
AU  - Aleksić, Bojana
AU  - Aleksić, Vujadin
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/378
AB  - Most of the serious weldment failures lead to catastrophic consequences in terms of damage of other equipment, loss of production, and risks to workers' health and safety. Hence, there is motivation to find margin between safety and disaster. This necessitates guaranteeing the integrity of a welded structure even if a crack is present. Therefore, influence of the material inhomogeneity and residual stresses on deformation and fracture behavior needs to be described precisely. Fracture mechanics parameters J - integral and CTOD have attracted great interest in recent years. Two three point bending specimens of base metal (BM) and weld metal (WM) were tested according to standard BS EN ISO 15653. Than, a two dimensional finite element analysis was performed in Ansys Workbench software to calculate J-integral, and compare with experimental results. The aim of this work is to explore the possibility of using the test results in the reliable prediction of weldment fracture.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Numerical determination and experimental validation of the fracture toughness of welded joints
VL  - 107
DO  - 10.1016/j.engfailanal.2019.104220
ER  - 
@article{
author = "Hemer, Abubkr and Milović, Ljubica and Grbović, Aleksandar and Aleksić, Bojana and Aleksić, Vujadin",
year = "2020",
abstract = "Most of the serious weldment failures lead to catastrophic consequences in terms of damage of other equipment, loss of production, and risks to workers' health and safety. Hence, there is motivation to find margin between safety and disaster. This necessitates guaranteeing the integrity of a welded structure even if a crack is present. Therefore, influence of the material inhomogeneity and residual stresses on deformation and fracture behavior needs to be described precisely. Fracture mechanics parameters J - integral and CTOD have attracted great interest in recent years. Two three point bending specimens of base metal (BM) and weld metal (WM) were tested according to standard BS EN ISO 15653. Than, a two dimensional finite element analysis was performed in Ansys Workbench software to calculate J-integral, and compare with experimental results. The aim of this work is to explore the possibility of using the test results in the reliable prediction of weldment fracture.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Numerical determination and experimental validation of the fracture toughness of welded joints",
volume = "107",
doi = "10.1016/j.engfailanal.2019.104220"
}
Hemer, A., Milović, L., Grbović, A., Aleksić, B.,& Aleksić, V.. (2020). Numerical determination and experimental validation of the fracture toughness of welded joints. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 107.
https://doi.org/10.1016/j.engfailanal.2019.104220
Hemer A, Milović L, Grbović A, Aleksić B, Aleksić V. Numerical determination and experimental validation of the fracture toughness of welded joints. in Engineering Failure Analysis. 2020;107.
doi:10.1016/j.engfailanal.2019.104220 .
Hemer, Abubkr, Milović, Ljubica, Grbović, Aleksandar, Aleksić, Bojana, Aleksić, Vujadin, "Numerical determination and experimental validation of the fracture toughness of welded joints" in Engineering Failure Analysis, 107 (2020),
https://doi.org/10.1016/j.engfailanal.2019.104220 . .
8
1
8

HSLA Steel - Simulation of Fatigue

Aleksić, Vujadin; Aleksić, Bojana; Prodanović, A.; Milović, Ljubica

(Springer, 2020)

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Aleksić, Bojana
AU  - Prodanović, A.
AU  - Milović, Ljubica
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/380
AB  - In present paper, based on the results of the experimental study of the behaviour of the samples made of a HSLA steel, in the form of round smooth specimens (RSS) under LCF conditions (with controlled and completely reversible strain Δε/2 = const, Rε = εmin/εmax = −1, according to ISO 12106: 2003 (E)) and square specimens (SqS) under conditions of HCF conditions (with controlled one-way variable load on tension with σmin = const, according to ISO 12110-1:2013), a computational stress analysis was performed using the FE method and the behaviour of this steel in the fatigue behaviour simulation (LCF and HCF) in SolidWorks programme was shown. On the basis of the performed analysis of the results of the stress-strain state and the determination of the life using the life isolines for a particular load cycle involving the entire RSS ligament, i.e. SqS for a particular load in a wide range of LCF and HCF loads and comparison with the results of experimental tests, a figure i.e. graphical presentation was given and conclusions were drawn that justify the efforts for numerical assessment of the life cycle of the loaded machine parts.
PB  - Springer
C3  - Lecture Notes in Networks and Systems
T1  - HSLA Steel - Simulation of Fatigue
EP  - 321
SP  - 314
VL  - 128 LNNS
DO  - 10.1007/978-3-030-46817-0_36
ER  - 
@conference{
author = "Aleksić, Vujadin and Aleksić, Bojana and Prodanović, A. and Milović, Ljubica",
year = "2020",
abstract = "In present paper, based on the results of the experimental study of the behaviour of the samples made of a HSLA steel, in the form of round smooth specimens (RSS) under LCF conditions (with controlled and completely reversible strain Δε/2 = const, Rε = εmin/εmax = −1, according to ISO 12106: 2003 (E)) and square specimens (SqS) under conditions of HCF conditions (with controlled one-way variable load on tension with σmin = const, according to ISO 12110-1:2013), a computational stress analysis was performed using the FE method and the behaviour of this steel in the fatigue behaviour simulation (LCF and HCF) in SolidWorks programme was shown. On the basis of the performed analysis of the results of the stress-strain state and the determination of the life using the life isolines for a particular load cycle involving the entire RSS ligament, i.e. SqS for a particular load in a wide range of LCF and HCF loads and comparison with the results of experimental tests, a figure i.e. graphical presentation was given and conclusions were drawn that justify the efforts for numerical assessment of the life cycle of the loaded machine parts.",
publisher = "Springer",
journal = "Lecture Notes in Networks and Systems",
title = "HSLA Steel - Simulation of Fatigue",
pages = "321-314",
volume = "128 LNNS",
doi = "10.1007/978-3-030-46817-0_36"
}
Aleksić, V., Aleksić, B., Prodanović, A.,& Milović, L.. (2020). HSLA Steel - Simulation of Fatigue. in Lecture Notes in Networks and Systems
Springer., 128 LNNS, 314-321.
https://doi.org/10.1007/978-3-030-46817-0_36
Aleksić V, Aleksić B, Prodanović A, Milović L. HSLA Steel - Simulation of Fatigue. in Lecture Notes in Networks and Systems. 2020;128 LNNS:314-321.
doi:10.1007/978-3-030-46817-0_36 .
Aleksić, Vujadin, Aleksić, Bojana, Prodanović, A., Milović, Ljubica, "HSLA Steel - Simulation of Fatigue" in Lecture Notes in Networks and Systems, 128 LNNS (2020):314-321,
https://doi.org/10.1007/978-3-030-46817-0_36 . .
1

Feasibility Analysis for Repair of Large Diameter Hydro Turbine Shaft Based on Weldability Test and Welding Cycle Simulation

Momčilović, Dejan; Odanović, Zoran

(2019)

TY  - JOUR
AU  - Momčilović, Dejan
AU  - Odanović, Zoran
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/453
AB  - Turbine and generator rotors and shafts undergo high stresses during regular working life
and, from a safety and operational aspect, are the most significant components of a power
generation system. Depending on the appropriate operating conditions, like temperature and/or
corrosion the, shafts can be fabricated out of low/high alloy heat resistance material or of low
alloyed, highly toughened material for different application. Despite known good practice and
developed operation procedures, the failures of shafts sometimes occur. The right and well-defined
failure analysis is the basis for feasibility analysis of repair method in the power generating industry.
The analysis of direct and indirect costs of repair after the failure analysis as well as the analysis of
the repair and post-repair conditions of the repaired element is the vital for decision on the key
question. Is it possible to repair this element and what is the optimal repair strategy?
This paper compares and analyses two approaches, by weldability analysis and weld cycle
simulation, in order to determine welding feasibility analysis of cracked hydro turbine shafts.
T2  - Advanced Materials Research
T1  - Feasibility Analysis for Repair of Large Diameter Hydro Turbine Shaft Based on Weldability Test and Welding Cycle Simulation
EP  - 45
SP  - 36
VL  - 1153
DO  - 10.4028/www.scientific.net/AMR.1153.36
ER  - 
@article{
author = "Momčilović, Dejan and Odanović, Zoran",
year = "2019",
abstract = "Turbine and generator rotors and shafts undergo high stresses during regular working life
and, from a safety and operational aspect, are the most significant components of a power
generation system. Depending on the appropriate operating conditions, like temperature and/or
corrosion the, shafts can be fabricated out of low/high alloy heat resistance material or of low
alloyed, highly toughened material for different application. Despite known good practice and
developed operation procedures, the failures of shafts sometimes occur. The right and well-defined
failure analysis is the basis for feasibility analysis of repair method in the power generating industry.
The analysis of direct and indirect costs of repair after the failure analysis as well as the analysis of
the repair and post-repair conditions of the repaired element is the vital for decision on the key
question. Is it possible to repair this element and what is the optimal repair strategy?
This paper compares and analyses two approaches, by weldability analysis and weld cycle
simulation, in order to determine welding feasibility analysis of cracked hydro turbine shafts.",
journal = "Advanced Materials Research",
title = "Feasibility Analysis for Repair of Large Diameter Hydro Turbine Shaft Based on Weldability Test and Welding Cycle Simulation",
pages = "45-36",
volume = "1153",
doi = "10.4028/www.scientific.net/AMR.1153.36"
}
Momčilović, D.,& Odanović, Z.. (2019). Feasibility Analysis for Repair of Large Diameter Hydro Turbine Shaft Based on Weldability Test and Welding Cycle Simulation. in Advanced Materials Research, 1153, 36-45.
https://doi.org/10.4028/www.scientific.net/AMR.1153.36
Momčilović D, Odanović Z. Feasibility Analysis for Repair of Large Diameter Hydro Turbine Shaft Based on Weldability Test and Welding Cycle Simulation. in Advanced Materials Research. 2019;1153:36-45.
doi:10.4028/www.scientific.net/AMR.1153.36 .
Momčilović, Dejan, Odanović, Zoran, "Feasibility Analysis for Repair of Large Diameter Hydro Turbine Shaft Based on Weldability Test and Welding Cycle Simulation" in Advanced Materials Research, 1153 (2019):36-45,
https://doi.org/10.4028/www.scientific.net/AMR.1153.36 . .

Niskociklični zamor niskolegiranih čelika povišene čvrstoće

Aleksić, Vujadin

(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2019)

TY  - THES
AU  - Aleksić, Vujadin
PY  - 2019
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=7526
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:22426/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51893263
UR  - https://nardus.mpn.gov.rs/handle/123456789/17347
UR  - http://rims.institutims.rs/handle/123456789/10
AB  - Imajući u vidu heterogenost svojstava zavarenog spoja, a naročito uske zone pod uticajem toplote, u ovoj disertaciji je eksperimentalno ispitivano i analizirano ponašanje niskolegiranog čelika povišene čvrstoće (HSLA) u uslovima niskocikličnog zamora, na glatkim okruglim epruvetama iz osnovnog metala i epruvetama dobijenim termičkom simulacijom zone pod uticajem toplote. Takođe je ispitivano ponašanje osnovnog metala i simulirane zone pod uticajem toplote u uslovima dejstva kavitacije. Čelik, Nionikral 70 (NN-70), odabran u ovoj disertaciji za istraživanje ponašanja pri zamornom opterećenju i dejstvu kavitacije, spada u grupu niskolegiranih čelika povišene čvrstoće koji se, između ostalog, primenjuju u brodogradnji kao i za izradu posuda pod pritiskom. Ciljevi istraživanja su da se, u odsustvu pouzdanijih teorija o zamaranju i kavitaciji, pogodnom metodom ispitivanja, tj. simuliranjem strukture materijala i dejstva opterećenja odnosno deformacija, u laboratorijskim uslovima na odgovarajućim uzorcima - epruvetama, dođe do rezultata koji su posredno ili neposredno primenljivi u proračunima i da se dobijeni rezultati eventualno iskoriste i za fundamentalna proučavanja tokova procesa zamaranja i kavitacije kako osnovnog metala, tako i zone uticaja toplote zavarenih spojeva.
AB  - In this dissertation the experimentally investigated and analyzed behavior of a low-alloyed high strength steel exposed to the low cycle fatigue is done. Taking into account the welded joint properties heterogeneity, especially its narrow heat-affected zone, experiments were performed on two kinds of specimens: smooth round specimens made of parent material (PM) and specimens obtained by thermal simulation of the heat-affected zone (SHAZ). The behavior of PM and SHAZ affected by cavitation were also investigated. Steel designated as Nionicral 70 (NN-70), selected in this dissertation to investigate the behavior of fatigue and cavitations’ loads, belongs to a group of lowalloy steels of high strength, which are, among other things, applied in shipbuilding as well as for the production of pressure vessels. The research aims are that, in the absence of more reliable theories of fatigue and cavitation, a suitable test method, i.e. simulating the structure of the material and the load and/or deformation in laboratory conditions on the appropriate specimens, results are obtained which are directly or indirectly applicable in the calculations, and that the obtained results are possibly used for the fundamental study of the fatigue and cavitation processes of the parent material, as well as its heat-affected zone in welded joints.
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - Niskociklični zamor niskolegiranih čelika povišene čvrstoće
T1  - Low cycle fatigue of high strength low alloy steels
UR  - https://hdl.handle.net/21.15107/rcub_nardus_17347
ER  - 
@phdthesis{
author = "Aleksić, Vujadin",
year = "2019",
abstract = "Imajući u vidu heterogenost svojstava zavarenog spoja, a naročito uske zone pod uticajem toplote, u ovoj disertaciji je eksperimentalno ispitivano i analizirano ponašanje niskolegiranog čelika povišene čvrstoće (HSLA) u uslovima niskocikličnog zamora, na glatkim okruglim epruvetama iz osnovnog metala i epruvetama dobijenim termičkom simulacijom zone pod uticajem toplote. Takođe je ispitivano ponašanje osnovnog metala i simulirane zone pod uticajem toplote u uslovima dejstva kavitacije. Čelik, Nionikral 70 (NN-70), odabran u ovoj disertaciji za istraživanje ponašanja pri zamornom opterećenju i dejstvu kavitacije, spada u grupu niskolegiranih čelika povišene čvrstoće koji se, između ostalog, primenjuju u brodogradnji kao i za izradu posuda pod pritiskom. Ciljevi istraživanja su da se, u odsustvu pouzdanijih teorija o zamaranju i kavitaciji, pogodnom metodom ispitivanja, tj. simuliranjem strukture materijala i dejstva opterećenja odnosno deformacija, u laboratorijskim uslovima na odgovarajućim uzorcima - epruvetama, dođe do rezultata koji su posredno ili neposredno primenljivi u proračunima i da se dobijeni rezultati eventualno iskoriste i za fundamentalna proučavanja tokova procesa zamaranja i kavitacije kako osnovnog metala, tako i zone uticaja toplote zavarenih spojeva., In this dissertation the experimentally investigated and analyzed behavior of a low-alloyed high strength steel exposed to the low cycle fatigue is done. Taking into account the welded joint properties heterogeneity, especially its narrow heat-affected zone, experiments were performed on two kinds of specimens: smooth round specimens made of parent material (PM) and specimens obtained by thermal simulation of the heat-affected zone (SHAZ). The behavior of PM and SHAZ affected by cavitation were also investigated. Steel designated as Nionicral 70 (NN-70), selected in this dissertation to investigate the behavior of fatigue and cavitations’ loads, belongs to a group of lowalloy steels of high strength, which are, among other things, applied in shipbuilding as well as for the production of pressure vessels. The research aims are that, in the absence of more reliable theories of fatigue and cavitation, a suitable test method, i.e. simulating the structure of the material and the load and/or deformation in laboratory conditions on the appropriate specimens, results are obtained which are directly or indirectly applicable in the calculations, and that the obtained results are possibly used for the fundamental study of the fatigue and cavitation processes of the parent material, as well as its heat-affected zone in welded joints.",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "Niskociklični zamor niskolegiranih čelika povišene čvrstoće, Low cycle fatigue of high strength low alloy steels",
url = "https://hdl.handle.net/21.15107/rcub_nardus_17347"
}
Aleksić, V.. (2019). Niskociklični zamor niskolegiranih čelika povišene čvrstoće. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_17347
Aleksić V. Niskociklični zamor niskolegiranih čelika povišene čvrstoće. 2019;.
https://hdl.handle.net/21.15107/rcub_nardus_17347 .
Aleksić, Vujadin, "Niskociklični zamor niskolegiranih čelika povišene čvrstoće" (2019),
https://hdl.handle.net/21.15107/rcub_nardus_17347 .

Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ

Aleksić, Vujadin; Milović, Ljubica; Blačić, Ivo; Vuherer, Tomaž; Bulatović, Srđan

(Pergamon-Elsevier Science Ltd, Oxford, 2019)

TY  - JOUR
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Blačić, Ivo
AU  - Vuherer, Tomaž
AU  - Bulatović, Srđan
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/354
AB  - Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials which give them good resistance to crack initiation and propagation.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ
EP  - 1106
SP  - 1094
VL  - 104
DO  - 10.1016/j.engfailanal.2019.06.017
ER  - 
@article{
author = "Aleksić, Vujadin and Milović, Ljubica and Blačić, Ivo and Vuherer, Tomaž and Bulatović, Srđan",
year = "2019",
abstract = "Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials which give them good resistance to crack initiation and propagation.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ",
pages = "1106-1094",
volume = "104",
doi = "10.1016/j.engfailanal.2019.06.017"
}
Aleksić, V., Milović, L., Blačić, I., Vuherer, T.,& Bulatović, S.. (2019). Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 104, 1094-1106.
https://doi.org/10.1016/j.engfailanal.2019.06.017
Aleksić V, Milović L, Blačić I, Vuherer T, Bulatović S. Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ. in Engineering Failure Analysis. 2019;104:1094-1106.
doi:10.1016/j.engfailanal.2019.06.017 .
Aleksić, Vujadin, Milović, Ljubica, Blačić, Ivo, Vuherer, Tomaž, Bulatović, Srđan, "Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ" in Engineering Failure Analysis, 104 (2019):1094-1106,
https://doi.org/10.1016/j.engfailanal.2019.06.017 . .
18
7
17

Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline

Aleksić, Bojana; Grbović, Aleksandar; Milović, Ljubica; Hemer, Abubkr; Aleksić, Vujadin

(Pergamon-Elsevier Science Ltd, Oxford, 2019)

TY  - JOUR
AU  - Aleksić, Bojana
AU  - Grbović, Aleksandar
AU  - Milović, Ljubica
AU  - Hemer, Abubkr
AU  - Aleksić, Vujadin
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/370
AB  - In order to prevent the premature failure of steam pipeline produced of molybdenum-vanadium steel, the experimental tests were performed to measure fracture toughness and to determine the mechanical behaviour of cracked pipes. A finite element method was used to calculate the fracture behaviour of the pressurized pipeline made of 14MoV6-3 steel based on the J-integral computation. The J-R curves were experimentally obtained by the elastic unloading compliance method for the single edge notched bend specimens and compared with those obtained using finite element method. A two dimensional finite element analysis was performed in Ansys Workbench software to determine the stress distribution and calculate J-integral values for the selected specimen geometry. Special attention was paid to the influence of applied boundary conditions on the accuracy of J-integral values, as well as to the influence of mesh density. It is shown that numerically obtained J-values significantly depend on the number of nodes used to apply displacements. However, if recommendations proposed in this paper are implemented, the accuracy of calculated values is satisfactory and successful failure analysis can be carried out. This approach can be useful in engineering applications where time saving and costs reducing are required.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline
VL  - 106
DO  - 10.1016/j.engfailanal.2019.104165
ER  - 
@article{
author = "Aleksić, Bojana and Grbović, Aleksandar and Milović, Ljubica and Hemer, Abubkr and Aleksić, Vujadin",
year = "2019",
abstract = "In order to prevent the premature failure of steam pipeline produced of molybdenum-vanadium steel, the experimental tests were performed to measure fracture toughness and to determine the mechanical behaviour of cracked pipes. A finite element method was used to calculate the fracture behaviour of the pressurized pipeline made of 14MoV6-3 steel based on the J-integral computation. The J-R curves were experimentally obtained by the elastic unloading compliance method for the single edge notched bend specimens and compared with those obtained using finite element method. A two dimensional finite element analysis was performed in Ansys Workbench software to determine the stress distribution and calculate J-integral values for the selected specimen geometry. Special attention was paid to the influence of applied boundary conditions on the accuracy of J-integral values, as well as to the influence of mesh density. It is shown that numerically obtained J-values significantly depend on the number of nodes used to apply displacements. However, if recommendations proposed in this paper are implemented, the accuracy of calculated values is satisfactory and successful failure analysis can be carried out. This approach can be useful in engineering applications where time saving and costs reducing are required.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline",
volume = "106",
doi = "10.1016/j.engfailanal.2019.104165"
}
Aleksić, B., Grbović, A., Milović, L., Hemer, A.,& Aleksić, V.. (2019). Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 106.
https://doi.org/10.1016/j.engfailanal.2019.104165
Aleksić B, Grbović A, Milović L, Hemer A, Aleksić V. Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline. in Engineering Failure Analysis. 2019;106.
doi:10.1016/j.engfailanal.2019.104165 .
Aleksić, Bojana, Grbović, Aleksandar, Milović, Ljubica, Hemer, Abubkr, Aleksić, Vujadin, "Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline" in Engineering Failure Analysis, 106 (2019),
https://doi.org/10.1016/j.engfailanal.2019.104165 . .
6
3
7

Determination of the Region of Stabilization of Low-Cycle Fatigue HSLA Steel from Test Data

Aleksić, Bojana; Aleksić, Vujadin; Milović, Ljubica; Grbović, Aleksandar

(Springer, 2018)

TY  - CHAP
AU  - Aleksić, Bojana
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Grbović, Aleksandar
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/772
PB  - Springer
T2  - Proceedings of the 17th International Conference on New Trends in Fatigue and Fracture
T1  - Determination of the Region of Stabilization of Low-Cycle Fatigue HSLA Steel from Test Data
EP  - 112
SP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_rims_772
ER  - 
@inbook{
author = "Aleksić, Bojana and Aleksić, Vujadin and Milović, Ljubica and Grbović, Aleksandar",
year = "2018",
publisher = "Springer",
journal = "Proceedings of the 17th International Conference on New Trends in Fatigue and Fracture",
booktitle = "Determination of the Region of Stabilization of Low-Cycle Fatigue HSLA Steel from Test Data",
pages = "112-101",
url = "https://hdl.handle.net/21.15107/rcub_rims_772"
}
Aleksić, B., Aleksić, V., Milović, L.,& Grbović, A.. (2018). Determination of the Region of Stabilization of Low-Cycle Fatigue HSLA Steel from Test Data. in Proceedings of the 17th International Conference on New Trends in Fatigue and Fracture
Springer., 101-112.
https://hdl.handle.net/21.15107/rcub_rims_772
Aleksić B, Aleksić V, Milović L, Grbović A. Determination of the Region of Stabilization of Low-Cycle Fatigue HSLA Steel from Test Data. in Proceedings of the 17th International Conference on New Trends in Fatigue and Fracture. 2018;:101-112.
https://hdl.handle.net/21.15107/rcub_rims_772 .
Aleksić, Bojana, Aleksić, Vujadin, Milović, Ljubica, Grbović, Aleksandar, "Determination of the Region of Stabilization of Low-Cycle Fatigue HSLA Steel from Test Data" in Proceedings of the 17th International Conference on New Trends in Fatigue and Fracture (2018):101-112,
https://hdl.handle.net/21.15107/rcub_rims_772 .

Determination of polynomial depending between hardness and cooling time t8/5 of steel NIONICRAL 70 heat affected zone

Aleksić, Bojana; Aleksić, Vujadin; Milović, Ljubica; Hemer, Abubkr; Prodanović, Ana

(2018)

TY  - CONF
AU  - Aleksić, Bojana
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Hemer, Abubkr
AU  - Prodanović, Ana
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/771
AB  - Because of the high heating and cooling velocity values, welding procedure is an unstable process. During
welding, changes in microstructure are occurring under overheating and/or cooling conditions. In comparing to the
parent steel (PM), throughout welding of steel alloys, a whole series of complex processes are performed which
influence to the appearance of different weldments microstructure and at the level of stresses in the weld metal
(WM) and the heat-affected zone (HAZ). In present paper, the analytic dependence between Vickers hardness (HV) values and cooling time im temperature interval from 800C to 500C (t8/5) will be determined using the test
results of experimental investigation of NIONICRAL 70 (NN-70) steel.
C3  - 18th International Conference on New Trends in Fatigue and Fracture NT2F18
T1  - Determination of polynomial depending between hardness and cooling time t8/5 of steel NIONICRAL 70 heat affected zone
EP  - 90
SP  - 87
UR  - https://hdl.handle.net/21.15107/rcub_rims_771
ER  - 
@conference{
author = "Aleksić, Bojana and Aleksić, Vujadin and Milović, Ljubica and Hemer, Abubkr and Prodanović, Ana",
year = "2018",
abstract = "Because of the high heating and cooling velocity values, welding procedure is an unstable process. During
welding, changes in microstructure are occurring under overheating and/or cooling conditions. In comparing to the
parent steel (PM), throughout welding of steel alloys, a whole series of complex processes are performed which
influence to the appearance of different weldments microstructure and at the level of stresses in the weld metal
(WM) and the heat-affected zone (HAZ). In present paper, the analytic dependence between Vickers hardness (HV) values and cooling time im temperature interval from 800C to 500C (t8/5) will be determined using the test
results of experimental investigation of NIONICRAL 70 (NN-70) steel.",
journal = "18th International Conference on New Trends in Fatigue and Fracture NT2F18",
title = "Determination of polynomial depending between hardness and cooling time t8/5 of steel NIONICRAL 70 heat affected zone",
pages = "90-87",
url = "https://hdl.handle.net/21.15107/rcub_rims_771"
}
Aleksić, B., Aleksić, V., Milović, L., Hemer, A.,& Prodanović, A.. (2018). Determination of polynomial depending between hardness and cooling time t8/5 of steel NIONICRAL 70 heat affected zone. in 18th International Conference on New Trends in Fatigue and Fracture NT2F18, 87-90.
https://hdl.handle.net/21.15107/rcub_rims_771
Aleksić B, Aleksić V, Milović L, Hemer A, Prodanović A. Determination of polynomial depending between hardness and cooling time t8/5 of steel NIONICRAL 70 heat affected zone. in 18th International Conference on New Trends in Fatigue and Fracture NT2F18. 2018;:87-90.
https://hdl.handle.net/21.15107/rcub_rims_771 .
Aleksić, Bojana, Aleksić, Vujadin, Milović, Ljubica, Hemer, Abubkr, Prodanović, Ana, "Determination of polynomial depending between hardness and cooling time t8/5 of steel NIONICRAL 70 heat affected zone" in 18th International Conference on New Trends in Fatigue and Fracture NT2F18 (2018):87-90,
https://hdl.handle.net/21.15107/rcub_rims_771 .

Determination of critical size of corrosion pit on mechanical elements in hydro power plants

Mitrović, Radivoje; Momčilović, Dejan; Atanasovska, Ivana

(Udruženje intelektualaca za razvoj nauke u Srbiji, Novi Sad, 2018)

TY  - JOUR
AU  - Mitrović, Radivoje
AU  - Momčilović, Dejan
AU  - Atanasovska, Ivana
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/344
AB  - Researchers in the field of fracture mechanics, predominantly developing appropriate solution algorithms for problems of solid bodies with cracks. Problems in mechanics generally, related with fracture and fatigue for solid bodies with various geometries of sharp notches, are studied to a much lesser extent. This situation can be explained by analytical difficulties arising in solving problems of elasticity theory for bodies with rounded notches. To solve problems of such class, starting from data on stress concentration in the rounded notch tip with a significant radius of curvature, simplified solutions with are therefore of great importance. Recent years, due to constant rise of computing power and development of numerical methods, re-evaluation of stress concentration factors from a viewpoint of theory of elasticity is present. This is mainly as a feedback from industry, which have requirements toward mega and nanostructures. Corrosion represents an important limitation to the safe and reliable use of many alloys in various industries. Pitting corrosion is a form of serious damage on metals surface such as high-strength aluminum alloys and stainless steel, which are susceptible to pitting when exposed to a corrosive attack in aggressive environments. This is particularly valid for dynamic loaded structures. The basic idea behind this paper is finding links between different scientific and engineering disciplines, which will enable useful level of applicability of existing knowledge. The subject of this paper is application of new method of determine length scale parameter for estimating the mechanistic aspect of corrosion pit under uniaxial/multiaxial high-cycle fatigue loading….
PB  - Udruženje intelektualaca za razvoj nauke u Srbiji, Novi Sad
T2  - Applied Engineering Letters
T1  - Determination of critical size of corrosion pit on mechanical elements in hydro power plants
EP  - 5
IS  - 1
SP  - 1
VL  - 3
DO  - 10.18485/aeletters.2018.3.1.1
ER  - 
@article{
author = "Mitrović, Radivoje and Momčilović, Dejan and Atanasovska, Ivana",
year = "2018",
abstract = "Researchers in the field of fracture mechanics, predominantly developing appropriate solution algorithms for problems of solid bodies with cracks. Problems in mechanics generally, related with fracture and fatigue for solid bodies with various geometries of sharp notches, are studied to a much lesser extent. This situation can be explained by analytical difficulties arising in solving problems of elasticity theory for bodies with rounded notches. To solve problems of such class, starting from data on stress concentration in the rounded notch tip with a significant radius of curvature, simplified solutions with are therefore of great importance. Recent years, due to constant rise of computing power and development of numerical methods, re-evaluation of stress concentration factors from a viewpoint of theory of elasticity is present. This is mainly as a feedback from industry, which have requirements toward mega and nanostructures. Corrosion represents an important limitation to the safe and reliable use of many alloys in various industries. Pitting corrosion is a form of serious damage on metals surface such as high-strength aluminum alloys and stainless steel, which are susceptible to pitting when exposed to a corrosive attack in aggressive environments. This is particularly valid for dynamic loaded structures. The basic idea behind this paper is finding links between different scientific and engineering disciplines, which will enable useful level of applicability of existing knowledge. The subject of this paper is application of new method of determine length scale parameter for estimating the mechanistic aspect of corrosion pit under uniaxial/multiaxial high-cycle fatigue loading….",
publisher = "Udruženje intelektualaca za razvoj nauke u Srbiji, Novi Sad",
journal = "Applied Engineering Letters",
title = "Determination of critical size of corrosion pit on mechanical elements in hydro power plants",
pages = "5-1",
number = "1",
volume = "3",
doi = "10.18485/aeletters.2018.3.1.1"
}
Mitrović, R., Momčilović, D.,& Atanasovska, I.. (2018). Determination of critical size of corrosion pit on mechanical elements in hydro power plants. in Applied Engineering Letters
Udruženje intelektualaca za razvoj nauke u Srbiji, Novi Sad., 3(1), 1-5.
https://doi.org/10.18485/aeletters.2018.3.1.1
Mitrović R, Momčilović D, Atanasovska I. Determination of critical size of corrosion pit on mechanical elements in hydro power plants. in Applied Engineering Letters. 2018;3(1):1-5.
doi:10.18485/aeletters.2018.3.1.1 .
Mitrović, Radivoje, Momčilović, Dejan, Atanasovska, Ivana, "Determination of critical size of corrosion pit on mechanical elements in hydro power plants" in Applied Engineering Letters, 3, no. 1 (2018):1-5,
https://doi.org/10.18485/aeletters.2018.3.1.1 . .
1
1

Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines

Aleksić, Bojana; Milović, Ljubica; Grbović, Aleksandar; Hemer, Abubkr; Aleksić, Vujadin; Zrilić, Milorad

(Elsevier Science Bv, Amsterdam, 2018)

TY  - CONF
AU  - Aleksić, Bojana
AU  - Milović, Ljubica
AU  - Grbović, Aleksandar
AU  - Hemer, Abubkr
AU  - Aleksić, Vujadin
AU  - Zrilić, Milorad
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/349
AB  - Steel grade 14MoV6-3 is a low-carbon microalloyed steel with addition of chromium and molybdenum. This grade is designed mainly for power industry applications, withstanding operating at elevated temperatures.In this paper, mechanical properties of steel grade 14MoV6-3 and methodology of calculation of critical values of the J-integral are presented. The level of damage is determined by analyzing the virgin material of the same grade. The focus of presented investigation is on the experimental J integral determination, where critical values of the J-integral (J(IC)) are compared with the values obtained by using the finite element methods (FEM). FEM model was defined on the basis of experimental conditions and obtained numerical values should confirm our experimental results.
PB  - Elsevier Science Bv, Amsterdam
C3  - ECF22 - Loading and Environmental Effects on Structural Integrity
T1  - Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines
EP  - 1594
SP  - 1589
VL  - 13
DO  - 10.1016/j.prostr.2018.12.335
ER  - 
@conference{
author = "Aleksić, Bojana and Milović, Ljubica and Grbović, Aleksandar and Hemer, Abubkr and Aleksić, Vujadin and Zrilić, Milorad",
year = "2018",
abstract = "Steel grade 14MoV6-3 is a low-carbon microalloyed steel with addition of chromium and molybdenum. This grade is designed mainly for power industry applications, withstanding operating at elevated temperatures.In this paper, mechanical properties of steel grade 14MoV6-3 and methodology of calculation of critical values of the J-integral are presented. The level of damage is determined by analyzing the virgin material of the same grade. The focus of presented investigation is on the experimental J integral determination, where critical values of the J-integral (J(IC)) are compared with the values obtained by using the finite element methods (FEM). FEM model was defined on the basis of experimental conditions and obtained numerical values should confirm our experimental results.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "ECF22 - Loading and Environmental Effects on Structural Integrity",
title = "Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines",
pages = "1594-1589",
volume = "13",
doi = "10.1016/j.prostr.2018.12.335"
}
Aleksić, B., Milović, L., Grbović, A., Hemer, A., Aleksić, V.,& Zrilić, M.. (2018). Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines. in ECF22 - Loading and Environmental Effects on Structural Integrity
Elsevier Science Bv, Amsterdam., 13, 1589-1594.
https://doi.org/10.1016/j.prostr.2018.12.335
Aleksić B, Milović L, Grbović A, Hemer A, Aleksić V, Zrilić M. Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines. in ECF22 - Loading and Environmental Effects on Structural Integrity. 2018;13:1589-1594.
doi:10.1016/j.prostr.2018.12.335 .
Aleksić, Bojana, Milović, Ljubica, Grbović, Aleksandar, Hemer, Abubkr, Aleksić, Vujadin, Zrilić, Milorad, "Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines" in ECF22 - Loading and Environmental Effects on Structural Integrity, 13 (2018):1589-1594,
https://doi.org/10.1016/j.prostr.2018.12.335 . .
2
1

Metodologija određivanja pokazatelja ponašanja HSLA čelika pri delovanju niskocikličnog zamora

Aleksić, Vujadin; Aleksić, Bojana; Milović, Ljubica

(Tehnološki fakultet, Zvornik, 2017)

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Aleksić, Bojana
AU  - Milović, Ljubica
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/784
AB  - U radu je analizirano eksperimentalno istraživanje ponašanja niskolegiranog čelika povišene
čvrstoće (HSLA) u uslovima niskocikličnog zamora (LCF), sa kontrolisanom i potpuno
reverzibilnom deformacijom (/2 = const, R = min/max = -1). Ispitivanja niskocikličnog
zamora obavljena su na seriji glatkih epruveta od čelika Nionikral 70 (NN-70), sa
poluamplitudom kontrolisane deformacije, /2=0.35, 0.45, 0.50, 0.60, 0.70 i 0.80. Za izbor
stabilizovanih histereza i obradu rezultata ispitivanja niskocikličnim zamorom, korišćene su
preporuke standarda ISO 12106:2003 (E) i ASTM E 606-04, kao i dve nove metode: Metoda
sredine stabilizacije (MSS) i Metoda praga NDT (MpNDT), što u ovom radu predstavlja četiri
rezultata za poređenje. Za svaki nivo deformacije izabrane su karakteristične stabilizovane
histereze, određene prema preporuci standarda ISO 12106:2003 (E) i ASTM E 606-04, MSS i
MpNDT, sa kojih su očitani potrebni podaci za dalju obradu rezultata i konačno, konstruisanje
karakterističnih krivih niskocikličnog zamora. Konstruisane krive su međusobno poređene, a
ocenjen je uticaj izbora karakterističnih stabilizovanih histereza na karakterizaciju ponašanja
čelika NN-70. Rezultati eksperimentalnih ispitivanja su nam dali važne podatke o razumevanju
zamornog ponašanja čelika NN-70. U radu je izvršeno i poređenje rezultata statičkog i
dinamičkog, odnosno monotonog i zamornog ponašanja materijala, što predstavlja praktični
doprinos oceni ponašanja čelika NN-70 u uslovima delovanja niskocikličnog zamora.
PB  - Tehnološki fakultet, Zvornik
C3  - V Međunarodni kongres „Inženjerstvo, ekologija i materijali u procesnoj industriji”
T1  - Metodologija određivanja pokazatelja ponašanja HSLA čelika pri delovanju niskocikličnog zamora
EP  - 1135
SP  - 1123
UR  - https://hdl.handle.net/21.15107/rcub_rims_784
ER  - 
@conference{
author = "Aleksić, Vujadin and Aleksić, Bojana and Milović, Ljubica",
year = "2017",
abstract = "U radu je analizirano eksperimentalno istraživanje ponašanja niskolegiranog čelika povišene
čvrstoće (HSLA) u uslovima niskocikličnog zamora (LCF), sa kontrolisanom i potpuno
reverzibilnom deformacijom (/2 = const, R = min/max = -1). Ispitivanja niskocikličnog
zamora obavljena su na seriji glatkih epruveta od čelika Nionikral 70 (NN-70), sa
poluamplitudom kontrolisane deformacije, /2=0.35, 0.45, 0.50, 0.60, 0.70 i 0.80. Za izbor
stabilizovanih histereza i obradu rezultata ispitivanja niskocikličnim zamorom, korišćene su
preporuke standarda ISO 12106:2003 (E) i ASTM E 606-04, kao i dve nove metode: Metoda
sredine stabilizacije (MSS) i Metoda praga NDT (MpNDT), što u ovom radu predstavlja četiri
rezultata za poređenje. Za svaki nivo deformacije izabrane su karakteristične stabilizovane
histereze, određene prema preporuci standarda ISO 12106:2003 (E) i ASTM E 606-04, MSS i
MpNDT, sa kojih su očitani potrebni podaci za dalju obradu rezultata i konačno, konstruisanje
karakterističnih krivih niskocikličnog zamora. Konstruisane krive su međusobno poređene, a
ocenjen je uticaj izbora karakterističnih stabilizovanih histereza na karakterizaciju ponašanja
čelika NN-70. Rezultati eksperimentalnih ispitivanja su nam dali važne podatke o razumevanju
zamornog ponašanja čelika NN-70. U radu je izvršeno i poređenje rezultata statičkog i
dinamičkog, odnosno monotonog i zamornog ponašanja materijala, što predstavlja praktični
doprinos oceni ponašanja čelika NN-70 u uslovima delovanja niskocikličnog zamora.",
publisher = "Tehnološki fakultet, Zvornik",
journal = "V Međunarodni kongres „Inženjerstvo, ekologija i materijali u procesnoj industriji”",
title = "Metodologija određivanja pokazatelja ponašanja HSLA čelika pri delovanju niskocikličnog zamora",
pages = "1135-1123",
url = "https://hdl.handle.net/21.15107/rcub_rims_784"
}
Aleksić, V., Aleksić, B.,& Milović, L.. (2017). Metodologija određivanja pokazatelja ponašanja HSLA čelika pri delovanju niskocikličnog zamora. in V Međunarodni kongres „Inženjerstvo, ekologija i materijali u procesnoj industriji”
Tehnološki fakultet, Zvornik., 1123-1135.
https://hdl.handle.net/21.15107/rcub_rims_784
Aleksić V, Aleksić B, Milović L. Metodologija određivanja pokazatelja ponašanja HSLA čelika pri delovanju niskocikličnog zamora. in V Međunarodni kongres „Inženjerstvo, ekologija i materijali u procesnoj industriji”. 2017;:1123-1135.
https://hdl.handle.net/21.15107/rcub_rims_784 .
Aleksić, Vujadin, Aleksić, Bojana, Milović, Ljubica, "Metodologija određivanja pokazatelja ponašanja HSLA čelika pri delovanju niskocikličnog zamora" in V Međunarodni kongres „Inženjerstvo, ekologija i materijali u procesnoj industriji” (2017):1123-1135,
https://hdl.handle.net/21.15107/rcub_rims_784 .

Application of gradient elasticity on corrosion fatigue damage assessment

Momčilović, Dejan; Atanasovska, Ivana

(2017)

TY  - CONF
AU  - Momčilović, Dejan
AU  - Atanasovska, Ivana
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/465
AB  - Researchers in the field of fracture mechanics, today predominantly developing appropriate
solution algorithms for problems of solid bodies with cracks. Problems in mechanics
generally, related with fracture and fatigue for solid bodies with various geometries of sharp
notches, are studied to a much lesser extent. This situation can be explained by analytical
difficulties arising in solving problems of elasticity theory for bodies with rounded notches.
To solve problems of such class, starting from data on stress concentration in the rounded
notch tip with a significant radius of curvature, simplified solutions with are therefore of
great importance. Recent years, due to constant rise of computing power and development of
numerical methods, re-evaluation of stress concentration factors from a viewpoint of theory
of elasticity is present. This is mainly as a feedback from industry which have requirements
toward mega and nanostructures.Corrosion represents an important limitation to the safe and
reliable use of many alloys in various industries. Pitting corrosion is a form of serious
damage on metals surface such as high-strength aluminum alloys and stainless steel, which
are susceptible to pitting when exposed to a corrosive attack in aggressive environments.
This is particularly valid for dynamic loaded structures. The subject of this paper is
application of new method of determine length scale parameter for estimating the
mechanistic aspect of corrosion pit under uniaxial/multiaxial high-cycle fatigue loading.
C3  - Proceedings of the 6th International Congress of Serbian Society of Mechanics, Tara, Serbia
T1  - Application of gradient elasticity on corrosion fatigue damage assessment
EP  - 4
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_rims_465
ER  - 
@conference{
author = "Momčilović, Dejan and Atanasovska, Ivana",
year = "2017",
abstract = "Researchers in the field of fracture mechanics, today predominantly developing appropriate
solution algorithms for problems of solid bodies with cracks. Problems in mechanics
generally, related with fracture and fatigue for solid bodies with various geometries of sharp
notches, are studied to a much lesser extent. This situation can be explained by analytical
difficulties arising in solving problems of elasticity theory for bodies with rounded notches.
To solve problems of such class, starting from data on stress concentration in the rounded
notch tip with a significant radius of curvature, simplified solutions with are therefore of
great importance. Recent years, due to constant rise of computing power and development of
numerical methods, re-evaluation of stress concentration factors from a viewpoint of theory
of elasticity is present. This is mainly as a feedback from industry which have requirements
toward mega and nanostructures.Corrosion represents an important limitation to the safe and
reliable use of many alloys in various industries. Pitting corrosion is a form of serious
damage on metals surface such as high-strength aluminum alloys and stainless steel, which
are susceptible to pitting when exposed to a corrosive attack in aggressive environments.
This is particularly valid for dynamic loaded structures. The subject of this paper is
application of new method of determine length scale parameter for estimating the
mechanistic aspect of corrosion pit under uniaxial/multiaxial high-cycle fatigue loading.",
journal = "Proceedings of the 6th International Congress of Serbian Society of Mechanics, Tara, Serbia",
title = "Application of gradient elasticity on corrosion fatigue damage assessment",
pages = "4-1",
url = "https://hdl.handle.net/21.15107/rcub_rims_465"
}
Momčilović, D.,& Atanasovska, I.. (2017). Application of gradient elasticity on corrosion fatigue damage assessment. in Proceedings of the 6th International Congress of Serbian Society of Mechanics, Tara, Serbia, 1-4.
https://hdl.handle.net/21.15107/rcub_rims_465
Momčilović D, Atanasovska I. Application of gradient elasticity on corrosion fatigue damage assessment. in Proceedings of the 6th International Congress of Serbian Society of Mechanics, Tara, Serbia. 2017;:1-4.
https://hdl.handle.net/21.15107/rcub_rims_465 .
Momčilović, Dejan, Atanasovska, Ivana, "Application of gradient elasticity on corrosion fatigue damage assessment" in Proceedings of the 6th International Congress of Serbian Society of Mechanics, Tara, Serbia (2017):1-4,
https://hdl.handle.net/21.15107/rcub_rims_465 .

Behaviour of nionikral-70 in low-cycle fatigue

Aleksić, Vujadin; Milović, Ljubica; Aleksić, Bojana; Bulatović, Srđan; Burzić, Zijah; Hemer, Abubkr

(Institut za ispitivanje materijala, Beograd, 2017)

TY  - JOUR
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Aleksić, Bojana
AU  - Bulatović, Srđan
AU  - Burzić, Zijah
AU  - Hemer, Abubkr
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/308
AB  - Experimental research on the behaviour of high-strength low-alloy steel ( HSLA)exposed to low-cycle fatigue (LCF) with controlled and fully reversible strain (Delta epsilon/2 = const, R epsilon =epsilon(min)/epsilon(max) = -1) has been analysed. LCF tests are performed on a series of smooth bar shaped specimens, 11 x 11 x 95 mm, parent metal (PM), welded joint (WJ) and simulated heat affected zone (SHAZ) of steel Nionikral 70 (NN-70) with semi-amplitude of controlled strain, Delta epsilon/2 = 0.40- 0.80. The results of the experimental investigation have given us important information on the understanding of fatigue behaviour of steel NN-70 and its welded joints. In this work the results of static and dynamic-, that is monotonous and fatigue behaviour of the material, are compared, which is a practical contribution to the assessment of the behaviour of PM and WJ of steel NN-70 exposed to effects of low cycle fatigue, i.e. monotonous and fatigue behaviour of the material.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Behaviour of nionikral-70 in low-cycle fatigue
EP  - 73
IS  - 1
SP  - 61
VL  - 17
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3495
ER  - 
@article{
author = "Aleksić, Vujadin and Milović, Ljubica and Aleksić, Bojana and Bulatović, Srđan and Burzić, Zijah and Hemer, Abubkr",
year = "2017",
abstract = "Experimental research on the behaviour of high-strength low-alloy steel ( HSLA)exposed to low-cycle fatigue (LCF) with controlled and fully reversible strain (Delta epsilon/2 = const, R epsilon =epsilon(min)/epsilon(max) = -1) has been analysed. LCF tests are performed on a series of smooth bar shaped specimens, 11 x 11 x 95 mm, parent metal (PM), welded joint (WJ) and simulated heat affected zone (SHAZ) of steel Nionikral 70 (NN-70) with semi-amplitude of controlled strain, Delta epsilon/2 = 0.40- 0.80. The results of the experimental investigation have given us important information on the understanding of fatigue behaviour of steel NN-70 and its welded joints. In this work the results of static and dynamic-, that is monotonous and fatigue behaviour of the material, are compared, which is a practical contribution to the assessment of the behaviour of PM and WJ of steel NN-70 exposed to effects of low cycle fatigue, i.e. monotonous and fatigue behaviour of the material.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Behaviour of nionikral-70 in low-cycle fatigue",
pages = "73-61",
number = "1",
volume = "17",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3495"
}
Aleksić, V., Milović, L., Aleksić, B., Bulatović, S., Burzić, Z.,& Hemer, A.. (2017). Behaviour of nionikral-70 in low-cycle fatigue. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 17(1), 61-73.
https://hdl.handle.net/21.15107/rcub_technorep_3495
Aleksić V, Milović L, Aleksić B, Bulatović S, Burzić Z, Hemer A. Behaviour of nionikral-70 in low-cycle fatigue. in Structural Integrity and Life. 2017;17(1):61-73.
https://hdl.handle.net/21.15107/rcub_technorep_3495 .
Aleksić, Vujadin, Milović, Ljubica, Aleksić, Bojana, Bulatović, Srđan, Burzić, Zijah, Hemer, Abubkr, "Behaviour of nionikral-70 in low-cycle fatigue" in Structural Integrity and Life, 17, no. 1 (2017):61-73,
https://hdl.handle.net/21.15107/rcub_technorep_3495 .
1
5

Methodology for determining the region of stabilization of low-cycle fatigue

Aleksić, Vujadin; Aleksić, Bojana; Milović, Ljubica

(Fakultet strojarstva i brodarsta, Univerzitet u Zagrebu, Hrvatska, 2016)

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Aleksić, Bojana
AU  - Milović, Ljubica
PY  - 2016
UR  - http://rims.institutims.rs/handle/123456789/782
AB  - In present paper, the behaviour of high-strength low-alloyed (HSLA) steel under conditions
of low-cycle fatigue (LCF) has been experimentally tested and analyzed. Based on the experimental
results obtained in the programme EXCEL, characteristic regions of low-cycle
fatigue of steel NIONIKRAL 70 (NN-70) have been determined, the most important being
the region of stable behaviour of materials, so-called "the region of stabilization". From this
region, on the basis of pre-defined requirements, characteristic stabilized hysteresis have
been isolated for each strain level, based on which the Indicators of low-cycle fatigue of
steel NN-70 have been identified.
PB  - Fakultet strojarstva i brodarsta, Univerzitet u Zagrebu, Hrvatska
C3  - 16th International Conference on New Trends in Fatigue and Fracture (NT2F16)
T1  - Methodology for determining the region of stabilization of low-cycle fatigue
EP  - 190
SP  - 189
UR  - https://hdl.handle.net/21.15107/rcub_rims_782
ER  - 
@conference{
author = "Aleksić, Vujadin and Aleksić, Bojana and Milović, Ljubica",
year = "2016",
abstract = "In present paper, the behaviour of high-strength low-alloyed (HSLA) steel under conditions
of low-cycle fatigue (LCF) has been experimentally tested and analyzed. Based on the experimental
results obtained in the programme EXCEL, characteristic regions of low-cycle
fatigue of steel NIONIKRAL 70 (NN-70) have been determined, the most important being
the region of stable behaviour of materials, so-called "the region of stabilization". From this
region, on the basis of pre-defined requirements, characteristic stabilized hysteresis have
been isolated for each strain level, based on which the Indicators of low-cycle fatigue of
steel NN-70 have been identified.",
publisher = "Fakultet strojarstva i brodarsta, Univerzitet u Zagrebu, Hrvatska",
journal = "16th International Conference on New Trends in Fatigue and Fracture (NT2F16)",
title = "Methodology for determining the region of stabilization of low-cycle fatigue",
pages = "190-189",
url = "https://hdl.handle.net/21.15107/rcub_rims_782"
}
Aleksić, V., Aleksić, B.,& Milović, L.. (2016). Methodology for determining the region of stabilization of low-cycle fatigue. in 16th International Conference on New Trends in Fatigue and Fracture (NT2F16)
Fakultet strojarstva i brodarsta, Univerzitet u Zagrebu, Hrvatska., 189-190.
https://hdl.handle.net/21.15107/rcub_rims_782
Aleksić V, Aleksić B, Milović L. Methodology for determining the region of stabilization of low-cycle fatigue. in 16th International Conference on New Trends in Fatigue and Fracture (NT2F16). 2016;:189-190.
https://hdl.handle.net/21.15107/rcub_rims_782 .
Aleksić, Vujadin, Aleksić, Bojana, Milović, Ljubica, "Methodology for determining the region of stabilization of low-cycle fatigue" in 16th International Conference on New Trends in Fatigue and Fracture (NT2F16) (2016):189-190,
https://hdl.handle.net/21.15107/rcub_rims_782 .

Finite element method pressure vessel calculation and analysis of the effects of the butt welded joints on a carrying capacity of a structure

Aleksić, Bojana; Aleksić, Vujadin; Milović, Ljubica

(Fakultet strojarstva i brodarsta, Univerzitet u Zagrebu, Hrvatska, 2016)

TY  - CONF
AU  - Aleksić, Bojana
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
PY  - 2016
UR  - http://rims.institutims.rs/handle/123456789/778
AB  - In present paper, after calculation using the finite element method (FEM), stress distribution
on the model of a part of the pressurized boiler shell without welded joints (WJ), with transversal
WJ, longitudinal WJ and crosspoint location of WJ Is analyzed. Also, FEM calculation
and comparative analysis of the effects of WJ on the stress distribution have been conducted
using the tank for liquid carbon dioxide as an example, on which. In addition to the
shell sheet-metal and heads with necessary openings and elements such as saddles with supports
and hangers, transversa! and longitudinal butt WJ, have been modelled.
PB  - Fakultet strojarstva i brodarsta, Univerzitet u Zagrebu, Hrvatska
C3  - 16th International Conference on New Trends in Fatigue and Fracture (NT2F16)
T1  - Finite element method pressure vessel calculation and analysis of the effects of the butt welded joints on a carrying capacity of a structure
EP  - 154
SP  - 153
UR  - https://hdl.handle.net/21.15107/rcub_rims_778
ER  - 
@conference{
author = "Aleksić, Bojana and Aleksić, Vujadin and Milović, Ljubica",
year = "2016",
abstract = "In present paper, after calculation using the finite element method (FEM), stress distribution
on the model of a part of the pressurized boiler shell without welded joints (WJ), with transversal
WJ, longitudinal WJ and crosspoint location of WJ Is analyzed. Also, FEM calculation
and comparative analysis of the effects of WJ on the stress distribution have been conducted
using the tank for liquid carbon dioxide as an example, on which. In addition to the
shell sheet-metal and heads with necessary openings and elements such as saddles with supports
and hangers, transversa! and longitudinal butt WJ, have been modelled.",
publisher = "Fakultet strojarstva i brodarsta, Univerzitet u Zagrebu, Hrvatska",
journal = "16th International Conference on New Trends in Fatigue and Fracture (NT2F16)",
title = "Finite element method pressure vessel calculation and analysis of the effects of the butt welded joints on a carrying capacity of a structure",
pages = "154-153",
url = "https://hdl.handle.net/21.15107/rcub_rims_778"
}
Aleksić, B., Aleksić, V.,& Milović, L.. (2016). Finite element method pressure vessel calculation and analysis of the effects of the butt welded joints on a carrying capacity of a structure. in 16th International Conference on New Trends in Fatigue and Fracture (NT2F16)
Fakultet strojarstva i brodarsta, Univerzitet u Zagrebu, Hrvatska., 153-154.
https://hdl.handle.net/21.15107/rcub_rims_778
Aleksić B, Aleksić V, Milović L. Finite element method pressure vessel calculation and analysis of the effects of the butt welded joints on a carrying capacity of a structure. in 16th International Conference on New Trends in Fatigue and Fracture (NT2F16). 2016;:153-154.
https://hdl.handle.net/21.15107/rcub_rims_778 .
Aleksić, Bojana, Aleksić, Vujadin, Milović, Ljubica, "Finite element method pressure vessel calculation and analysis of the effects of the butt welded joints on a carrying capacity of a structure" in 16th International Conference on New Trends in Fatigue and Fracture (NT2F16) (2016):153-154,
https://hdl.handle.net/21.15107/rcub_rims_778 .

Non - desctructive testing of pressure vessels – Application of SolidWorks

Aleksić, Vujadin; Aleksić, Bojana; Momčilović, Dejan; Milović, Ljubica; Sedmak, Aleksandar

(Mašinski Fakultet Banja Luka, Republika Srpska, 2015)

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Aleksić, Bojana
AU  - Momčilović, Dejan
AU  - Milović, Ljubica
AU  - Sedmak, Aleksandar
PY  - 2015
UR  - http://rims.institutims.rs/handle/123456789/791
AB  - This paper describes application of parametric software for drawing and
modelling on testing of pressure vessels. The used software, SolidWorks, is used to
demonstrate all phases of testing: preparation of non-destructive testing (NDT) and
report generation regarding test results.
PB  - Mašinski Fakultet Banja Luka, Republika Srpska
C3  - 12th International Conference on Accomplishments in Electrical and Mechanical Engineering and Information Technology DEMI 2015
T1  - Non - desctructive testing of pressure vessels – Application of SolidWorks
EP  - 130
SP  - 125
UR  - https://hdl.handle.net/21.15107/rcub_rims_791
ER  - 
@conference{
author = "Aleksić, Vujadin and Aleksić, Bojana and Momčilović, Dejan and Milović, Ljubica and Sedmak, Aleksandar",
year = "2015",
abstract = "This paper describes application of parametric software for drawing and
modelling on testing of pressure vessels. The used software, SolidWorks, is used to
demonstrate all phases of testing: preparation of non-destructive testing (NDT) and
report generation regarding test results.",
publisher = "Mašinski Fakultet Banja Luka, Republika Srpska",
journal = "12th International Conference on Accomplishments in Electrical and Mechanical Engineering and Information Technology DEMI 2015",
title = "Non - desctructive testing of pressure vessels – Application of SolidWorks",
pages = "130-125",
url = "https://hdl.handle.net/21.15107/rcub_rims_791"
}
Aleksić, V., Aleksić, B., Momčilović, D., Milović, L.,& Sedmak, A.. (2015). Non - desctructive testing of pressure vessels – Application of SolidWorks. in 12th International Conference on Accomplishments in Electrical and Mechanical Engineering and Information Technology DEMI 2015
Mašinski Fakultet Banja Luka, Republika Srpska., 125-130.
https://hdl.handle.net/21.15107/rcub_rims_791
Aleksić V, Aleksić B, Momčilović D, Milović L, Sedmak A. Non - desctructive testing of pressure vessels – Application of SolidWorks. in 12th International Conference on Accomplishments in Electrical and Mechanical Engineering and Information Technology DEMI 2015. 2015;:125-130.
https://hdl.handle.net/21.15107/rcub_rims_791 .
Aleksić, Vujadin, Aleksić, Bojana, Momčilović, Dejan, Milović, Ljubica, Sedmak, Aleksandar, "Non - desctructive testing of pressure vessels – Application of SolidWorks" in 12th International Conference on Accomplishments in Electrical and Mechanical Engineering and Information Technology DEMI 2015 (2015):125-130,
https://hdl.handle.net/21.15107/rcub_rims_791 .

Razvoj metoda za povećanje radnog veka i pouzdanosti mašinskih sistema u uslovima zamora

Momčilović, Dejan

(Univerzitet u Beogradu, Mašinski fakultet, 2015)

TY  - THES
AU  - Momčilović, Dejan
PY  - 2015
UR  - https://nardus.mpn.gov.rs/handle/123456789/5047
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=2689
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:10804/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=514565027
UR  - http://rims.institutims.rs/handle/123456789/4
AB  - U ovom radu prikazan je razvoj metoda za procenu nastanka i širenja zamornih prslina u cilju povećanja radnog veka i pouzdanosti mašinskih elemenata i mašinskih sistema u uslovima zamora. Detaljno je izložena i analizirana dostupna naučna literatura iz teorijskih postavki fenomena zamora. Posebno je analizirana primena postojećih metoda i teorija na rešavanje problema zamornih oštećenja i otkaza kod mašinskih elemenata. Razvijanje novih metoda za procenu nastanka zamornih prslina izloženo je sa različitih aspekata, s obzirom da se radi o rezultatima multidisciplinarnih istraživanja ovog fenomena, uz primenu i interkorporiranje dostupnih savremenih analitičkih , numeričkih i eksperimentalnih metoda. Posebna pažnja posvećena je verifikaciji razvijenih metoda, kroz nekoliko pristupa. Za verifikaciju su korišćeni sopstveni eksperimentalni rezultati, kao i rezultati drugih autora. U cilju boljeg razumevanja razvijenih metoda, a pre svega metodologije širokih mogućnosti primene, detaljno je opisana primena na konkretnom i veoma složenom problemu otkaza mašinskog elementa u uslovima zamornog opterećenja.
AB  - This dissertation presents development of methods for assesment of crack initiation and propagation as part of the goal: increase of working life and reliability of machine elements and systems under fatigue loading. Детаљно je изложена и анализирана доступна научна литература из теоријских поставки феномена замора. Посебно је анализирана примена постојећих метода и теорија на решавање проблема заморних оштећења и отказа код машинских елемената On the basis of available scientific literature, the fenomenon of fatigue is analysed. The emphasize is on this research was application of existing methods and theories on failure prevention. Development of new methods for assessment of crack initiation is presented in detail, due to fact that multidisclipinary research is basis for application, analytical, numerical an experimental methods. The important part of presentation of developed methods, with significant potentials, is application on real and complex problem of failures of mechanical elements due to combination of fatigue and corrosion.
PB  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Razvoj metoda za povećanje radnog veka i pouzdanosti mašinskih sistema u uslovima zamora
T1  - Development of methods for increase of working life and reliability of mechanical systems under fatigue loading
UR  - https://hdl.handle.net/21.15107/rcub_nardus_5047
ER  - 
@phdthesis{
author = "Momčilović, Dejan",
year = "2015",
abstract = "U ovom radu prikazan je razvoj metoda za procenu nastanka i širenja zamornih prslina u cilju povećanja radnog veka i pouzdanosti mašinskih elemenata i mašinskih sistema u uslovima zamora. Detaljno je izložena i analizirana dostupna naučna literatura iz teorijskih postavki fenomena zamora. Posebno je analizirana primena postojećih metoda i teorija na rešavanje problema zamornih oštećenja i otkaza kod mašinskih elemenata. Razvijanje novih metoda za procenu nastanka zamornih prslina izloženo je sa različitih aspekata, s obzirom da se radi o rezultatima multidisciplinarnih istraživanja ovog fenomena, uz primenu i interkorporiranje dostupnih savremenih analitičkih , numeričkih i eksperimentalnih metoda. Posebna pažnja posvećena je verifikaciji razvijenih metoda, kroz nekoliko pristupa. Za verifikaciju su korišćeni sopstveni eksperimentalni rezultati, kao i rezultati drugih autora. U cilju boljeg razumevanja razvijenih metoda, a pre svega metodologije širokih mogućnosti primene, detaljno je opisana primena na konkretnom i veoma složenom problemu otkaza mašinskog elementa u uslovima zamornog opterećenja., This dissertation presents development of methods for assesment of crack initiation and propagation as part of the goal: increase of working life and reliability of machine elements and systems under fatigue loading. Детаљно je изложена и анализирана доступна научна литература из теоријских поставки феномена замора. Посебно је анализирана примена постојећих метода и теорија на решавање проблема заморних оштећења и отказа код машинских елемената On the basis of available scientific literature, the fenomenon of fatigue is analysed. The emphasize is on this research was application of existing methods and theories on failure prevention. Development of new methods for assessment of crack initiation is presented in detail, due to fact that multidisclipinary research is basis for application, analytical, numerical an experimental methods. The important part of presentation of developed methods, with significant potentials, is application on real and complex problem of failures of mechanical elements due to combination of fatigue and corrosion.",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Razvoj metoda za povećanje radnog veka i pouzdanosti mašinskih sistema u uslovima zamora, Development of methods for increase of working life and reliability of mechanical systems under fatigue loading",
url = "https://hdl.handle.net/21.15107/rcub_nardus_5047"
}
Momčilović, D.. (2015). Razvoj metoda za povećanje radnog veka i pouzdanosti mašinskih sistema u uslovima zamora. 
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_nardus_5047
Momčilović D. Razvoj metoda za povećanje radnog veka i pouzdanosti mašinskih sistema u uslovima zamora. 2015;.
https://hdl.handle.net/21.15107/rcub_nardus_5047 .
Momčilović, Dejan, "Razvoj metoda za povećanje radnog veka i pouzdanosti mašinskih sistema u uslovima zamora" (2015),
https://hdl.handle.net/21.15107/rcub_nardus_5047 .

Experimental J-integral determination of different weldments region at low temperature

Milović, Ljubica; Aleksić, Vujadin; Marinković, Aleksandar; Lazović, Tatjana; Stanković, Miloš

(UNIVERSITY OF DEBRECEN, Faculty of Engineering, Department of Mechanical Engineering, Hungary,, 2014)

TY  - CONF
AU  - Milović, Ljubica
AU  - Aleksić, Vujadin
AU  - Marinković, Aleksandar
AU  - Lazović, Tatjana
AU  - Stanković, Miloš
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/777
PB  - UNIVERSITY OF DEBRECEN, Faculty of Engineering, Department of Mechanical Engineering, Hungary,
C3  - International Scientific Conference On Advances In Mechanical Engineering
T1  - Experimental J-integral determination of different weldments region at low temperature
EP  - 95
SP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_rims_777
ER  - 
@conference{
author = "Milović, Ljubica and Aleksić, Vujadin and Marinković, Aleksandar and Lazović, Tatjana and Stanković, Miloš",
year = "2014",
publisher = "UNIVERSITY OF DEBRECEN, Faculty of Engineering, Department of Mechanical Engineering, Hungary,",
journal = "International Scientific Conference On Advances In Mechanical Engineering",
title = "Experimental J-integral determination of different weldments region at low temperature",
pages = "95-90",
url = "https://hdl.handle.net/21.15107/rcub_rims_777"
}
Milović, L., Aleksić, V., Marinković, A., Lazović, T.,& Stanković, M.. (2014). Experimental J-integral determination of different weldments region at low temperature. in International Scientific Conference On Advances In Mechanical Engineering
UNIVERSITY OF DEBRECEN, Faculty of Engineering, Department of Mechanical Engineering, Hungary,., 90-95.
https://hdl.handle.net/21.15107/rcub_rims_777
Milović L, Aleksić V, Marinković A, Lazović T, Stanković M. Experimental J-integral determination of different weldments region at low temperature. in International Scientific Conference On Advances In Mechanical Engineering. 2014;:90-95.
https://hdl.handle.net/21.15107/rcub_rims_777 .
Milović, Ljubica, Aleksić, Vujadin, Marinković, Aleksandar, Lazović, Tatjana, Stanković, Miloš, "Experimental J-integral determination of different weldments region at low temperature" in International Scientific Conference On Advances In Mechanical Engineering (2014):90-95,
https://hdl.handle.net/21.15107/rcub_rims_777 .

Cleaning by biodegradation of high pressure oily castings before welding repair work

Aleksić, Bojana; Aleksić, Vujadin; Bulatović, Srđan; Milović, Ljubica

(Udruženje inženjera Srbije za koroziju i zaštitu materijala (UISKOZAM), Srbija, 2014)

TY  - CONF
AU  - Aleksić, Bojana
AU  - Aleksić, Vujadin
AU  - Bulatović, Srđan
AU  - Milović, Ljubica
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/768
PB  - Udruženje inženjera Srbije za koroziju i  zaštitu materijala (UISKOZAM), Srbija
C3  - Međunarodna konferencija, Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine
T1  - Cleaning by biodegradation of high pressure oily castings before welding repair work
T1  - Čišćenje biorazgradnjom zauljenih livenih delova izloženih visokom pritisku u funkciji sanacije zavarivanjem
EP  - 51
SP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_rims_768
ER  - 
@conference{
author = "Aleksić, Bojana and Aleksić, Vujadin and Bulatović, Srđan and Milović, Ljubica",
year = "2014",
publisher = "Udruženje inženjera Srbije za koroziju i  zaštitu materijala (UISKOZAM), Srbija",
journal = "Međunarodna konferencija, Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine",
title = "Cleaning by biodegradation of high pressure oily castings before welding repair work, Čišćenje biorazgradnjom zauljenih livenih delova izloženih visokom pritisku u funkciji sanacije zavarivanjem",
pages = "51-44",
url = "https://hdl.handle.net/21.15107/rcub_rims_768"
}
Aleksić, B., Aleksić, V., Bulatović, S.,& Milović, L.. (2014). Cleaning by biodegradation of high pressure oily castings before welding repair work. in Međunarodna konferencija, Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine
Udruženje inženjera Srbije za koroziju i  zaštitu materijala (UISKOZAM), Srbija., 44-51.
https://hdl.handle.net/21.15107/rcub_rims_768
Aleksić B, Aleksić V, Bulatović S, Milović L. Cleaning by biodegradation of high pressure oily castings before welding repair work. in Međunarodna konferencija, Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine. 2014;:44-51.
https://hdl.handle.net/21.15107/rcub_rims_768 .
Aleksić, Bojana, Aleksić, Vujadin, Bulatović, Srđan, Milović, Ljubica, "Cleaning by biodegradation of high pressure oily castings before welding repair work" in Međunarodna konferencija, Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine (2014):44-51,
https://hdl.handle.net/21.15107/rcub_rims_768 .

Low cycle fatigue of weldments produced of a high strength low alloyed steel

Milović, Ljubica; Bulatović, Srđan; Aleksić, Vujadin; Burzić, Zijah

(Elsevier Science Bv, Amsterdam, 2014)

TY  - CONF
AU  - Milović, Ljubica
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Burzić, Zijah
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/232
AB  - A quenched and tempered high strength low alloy steel NIONIKRAL 70 for producing welded pressure vessels, where high resistance to fatigue crack propagation and high tolerance of damage are of high importance, has been investigated. Low cycle fatigue tests were conducting on several series of uniaxial cylindrical smooth specimens under strain control. The cycle behavior of the material is characterized using Coffin-Manson relation.
PB  - Elsevier Science Bv, Amsterdam
C3  - 20th European Conference on Fracture
T1  - Low cycle fatigue of weldments produced of a high strength low alloyed steel
EP  - 1434
SP  - 1429
VL  - 3
DO  - 10.1016/j.mspro.2014.06.231
ER  - 
@conference{
author = "Milović, Ljubica and Bulatović, Srđan and Aleksić, Vujadin and Burzić, Zijah",
year = "2014",
abstract = "A quenched and tempered high strength low alloy steel NIONIKRAL 70 for producing welded pressure vessels, where high resistance to fatigue crack propagation and high tolerance of damage are of high importance, has been investigated. Low cycle fatigue tests were conducting on several series of uniaxial cylindrical smooth specimens under strain control. The cycle behavior of the material is characterized using Coffin-Manson relation.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "20th European Conference on Fracture",
title = "Low cycle fatigue of weldments produced of a high strength low alloyed steel",
pages = "1434-1429",
volume = "3",
doi = "10.1016/j.mspro.2014.06.231"
}
Milović, L., Bulatović, S., Aleksić, V.,& Burzić, Z.. (2014). Low cycle fatigue of weldments produced of a high strength low alloyed steel. in 20th European Conference on Fracture
Elsevier Science Bv, Amsterdam., 3, 1429-1434.
https://doi.org/10.1016/j.mspro.2014.06.231
Milović L, Bulatović S, Aleksić V, Burzić Z. Low cycle fatigue of weldments produced of a high strength low alloyed steel. in 20th European Conference on Fracture. 2014;3:1429-1434.
doi:10.1016/j.mspro.2014.06.231 .
Milović, Ljubica, Bulatović, Srđan, Aleksić, Vujadin, Burzić, Zijah, "Low cycle fatigue of weldments produced of a high strength low alloyed steel" in 20th European Conference on Fracture, 3 (2014):1429-1434,
https://doi.org/10.1016/j.mspro.2014.06.231 . .
4
3

Identification of low cycle fatigue parameters of high strength low-alloy (HSLA) steel at room temperature

Bulatović, Srđan; Milović, Ljubica; Sedmak, Aleksandar; Samardzić, I.

(Croatian Metallurgical Soc, Zagreb, 2014)

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Milović, Ljubica
AU  - Sedmak, Aleksandar
AU  - Samardzić, I.
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/230
AB  - Low cycle fatigue test was performed in ambient atmosphere at room temperature. cycle loading of material, in case of High strength low-alloy steel, entails modifications of its properties and in this paper is therefore shown behavior of fatigue life using low cycle fatigue parameters. Mere precisely, crack initiation life of tested specimens Was computed using theory of Coffin-Manson relation during the fatigue loading. The geometry Of the stabilized hysteresis loop of welded joint HSLA steel, marked as Nionikral 70, is also analyzed. This stabilized hysteresis loop is very important for determination of materials properties.
PB  - Croatian Metallurgical Soc, Zagreb
T2  - Metalurgija
T1  - Identification of low cycle fatigue parameters of high strength low-alloy (HSLA) steel at room temperature
EP  - 468
IS  - 4
SP  - 466
VL  - 53
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2848
ER  - 
@article{
author = "Bulatović, Srđan and Milović, Ljubica and Sedmak, Aleksandar and Samardzić, I.",
year = "2014",
abstract = "Low cycle fatigue test was performed in ambient atmosphere at room temperature. cycle loading of material, in case of High strength low-alloy steel, entails modifications of its properties and in this paper is therefore shown behavior of fatigue life using low cycle fatigue parameters. Mere precisely, crack initiation life of tested specimens Was computed using theory of Coffin-Manson relation during the fatigue loading. The geometry Of the stabilized hysteresis loop of welded joint HSLA steel, marked as Nionikral 70, is also analyzed. This stabilized hysteresis loop is very important for determination of materials properties.",
publisher = "Croatian Metallurgical Soc, Zagreb",
journal = "Metalurgija",
title = "Identification of low cycle fatigue parameters of high strength low-alloy (HSLA) steel at room temperature",
pages = "468-466",
number = "4",
volume = "53",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2848"
}
Bulatović, S., Milović, L., Sedmak, A.,& Samardzić, I.. (2014). Identification of low cycle fatigue parameters of high strength low-alloy (HSLA) steel at room temperature. in Metalurgija
Croatian Metallurgical Soc, Zagreb., 53(4), 466-468.
https://hdl.handle.net/21.15107/rcub_technorep_2848
Bulatović S, Milović L, Sedmak A, Samardzić I. Identification of low cycle fatigue parameters of high strength low-alloy (HSLA) steel at room temperature. in Metalurgija. 2014;53(4):466-468.
https://hdl.handle.net/21.15107/rcub_technorep_2848 .
Bulatović, Srđan, Milović, Ljubica, Sedmak, Aleksandar, Samardzić, I., "Identification of low cycle fatigue parameters of high strength low-alloy (HSLA) steel at room temperature" in Metalurgija, 53, no. 4 (2014):466-468,
https://hdl.handle.net/21.15107/rcub_technorep_2848 .
3
6

Impact of choice of stabilized hysteresis loop on the end result of investigation of high-strength low-alloy (HSLA) steel on low cycle fatigue

Bulatović, Srđan; Burzić, Zijah; Aleksić, Vujadin; Sedmak, Aleksandar; Milović, Ljubica

(Croatian Metallurgical Soc, Zagreb, 2014)

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Burzić, Zijah
AU  - Aleksić, Vujadin
AU  - Sedmak, Aleksandar
AU  - Milović, Ljubica
PY  - 2014
UR  - http://rims.institutims.rs/handle/123456789/229
AB  - High strength low-alloy steel under low cycle fatigue at a certain level of strain controlled achieve stabilized condition. During the fatigue loading stabilized hysteresis loop is determined, which typical cycle of stabilization is calculated as half number of cycles to failure. Stabilized hysteresis loop is a representative of all hysteresis and it's used to determine all of the parameters for the assessment of low cycle fatigue. This paper Shows comparison of complete strain-life curves of low cycle fatigue for two chosen stabilized hysteresis loop cycles of base metal HSLA steel marked as Nionikral 70.
PB  - Croatian Metallurgical Soc, Zagreb
T2  - Metalurgija
T1  - Impact of choice of stabilized hysteresis loop on the end result of investigation of high-strength low-alloy (HSLA) steel on low cycle fatigue
EP  - 480
IS  - 4
SP  - 477
VL  - 53
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2811
ER  - 
@article{
author = "Bulatović, Srđan and Burzić, Zijah and Aleksić, Vujadin and Sedmak, Aleksandar and Milović, Ljubica",
year = "2014",
abstract = "High strength low-alloy steel under low cycle fatigue at a certain level of strain controlled achieve stabilized condition. During the fatigue loading stabilized hysteresis loop is determined, which typical cycle of stabilization is calculated as half number of cycles to failure. Stabilized hysteresis loop is a representative of all hysteresis and it's used to determine all of the parameters for the assessment of low cycle fatigue. This paper Shows comparison of complete strain-life curves of low cycle fatigue for two chosen stabilized hysteresis loop cycles of base metal HSLA steel marked as Nionikral 70.",
publisher = "Croatian Metallurgical Soc, Zagreb",
journal = "Metalurgija",
title = "Impact of choice of stabilized hysteresis loop on the end result of investigation of high-strength low-alloy (HSLA) steel on low cycle fatigue",
pages = "480-477",
number = "4",
volume = "53",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2811"
}
Bulatović, S., Burzić, Z., Aleksić, V., Sedmak, A.,& Milović, L.. (2014). Impact of choice of stabilized hysteresis loop on the end result of investigation of high-strength low-alloy (HSLA) steel on low cycle fatigue. in Metalurgija
Croatian Metallurgical Soc, Zagreb., 53(4), 477-480.
https://hdl.handle.net/21.15107/rcub_technorep_2811
Bulatović S, Burzić Z, Aleksić V, Sedmak A, Milović L. Impact of choice of stabilized hysteresis loop on the end result of investigation of high-strength low-alloy (HSLA) steel on low cycle fatigue. in Metalurgija. 2014;53(4):477-480.
https://hdl.handle.net/21.15107/rcub_technorep_2811 .
Bulatović, Srđan, Burzić, Zijah, Aleksić, Vujadin, Sedmak, Aleksandar, Milović, Ljubica, "Impact of choice of stabilized hysteresis loop on the end result of investigation of high-strength low-alloy (HSLA) steel on low cycle fatigue" in Metalurgija, 53, no. 4 (2014):477-480,
https://hdl.handle.net/21.15107/rcub_technorep_2811 .
3
6

NDT in function prevention of loss integrity of structures large dimensions

Aleksić, Vujadin; Bulatović, Srđan; Milović, Ljubica

(Association of Mining and Geological Engineers of Macedonia, 2013)

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Bulatović, Srđan
AU  - Milović, Ljubica
PY  - 2013
UR  - http://rims.institutims.rs/handle/123456789/790
PB  - Association of Mining and Geological Engineers of Macedonia
C3  - 5th Balkan Mining Congress, Ohrid, Macedonia
T1  - NDT in function prevention of loss integrity of structures large dimensions
EP  - 118
SP  - 112
UR  - https://hdl.handle.net/21.15107/rcub_rims_790
ER  - 
@conference{
author = "Aleksić, Vujadin and Bulatović, Srđan and Milović, Ljubica",
year = "2013",
publisher = "Association of Mining and Geological Engineers of Macedonia",
journal = "5th Balkan Mining Congress, Ohrid, Macedonia",
title = "NDT in function prevention of loss integrity of structures large dimensions",
pages = "118-112",
url = "https://hdl.handle.net/21.15107/rcub_rims_790"
}
Aleksić, V., Bulatović, S.,& Milović, L.. (2013). NDT in function prevention of loss integrity of structures large dimensions. in 5th Balkan Mining Congress, Ohrid, Macedonia
Association of Mining and Geological Engineers of Macedonia., 112-118.
https://hdl.handle.net/21.15107/rcub_rims_790
Aleksić V, Bulatović S, Milović L. NDT in function prevention of loss integrity of structures large dimensions. in 5th Balkan Mining Congress, Ohrid, Macedonia. 2013;:112-118.
https://hdl.handle.net/21.15107/rcub_rims_790 .
Aleksić, Vujadin, Bulatović, Srđan, Milović, Ljubica, "NDT in function prevention of loss integrity of structures large dimensions" in 5th Balkan Mining Congress, Ohrid, Macedonia (2013):112-118,
https://hdl.handle.net/21.15107/rcub_rims_790 .

Methodological approach to recovery of damages of the steamlines in thermal power plants and heating plants

Aleksić, Vujadin; Simić, Radoje; Stojanović, Zoran; Milović, Ljubica

(Tehnološki fakultet Zvornik, BiH, 2013)

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Simić, Radoje
AU  - Stojanović, Zoran
AU  - Milović, Ljubica
PY  - 2013
UR  - http://rims.institutims.rs/handle/123456789/781
AB  - Na primeru procurivanja i ostecenja parovoda sveze pare u termoelektranama i toplanama
prikazan je metodoloski pristup utvrdivanja uzroka otkaza i saniranja ostecenja. Dati pristup se
moze primeniti za slicne konstrukcije, a njegova primena u preventivnom odrzavanju doprinosi
produzenju radnog veka parovoda.
PB  - Tehnološki fakultet Zvornik, BiH
C3  - 3rd International Congress „ Engineering, environment and materials in processing industry“
T1  - Methodological approach to recovery of damages of the steamlines in thermal power plants and heating plants
T1  - Metodološki pristup sanaciji oštećenja parovoda u termoelektranama i toplanama
EP  - 392
SP  - 382
UR  - https://hdl.handle.net/21.15107/rcub_rims_781
ER  - 
@conference{
author = "Aleksić, Vujadin and Simić, Radoje and Stojanović, Zoran and Milović, Ljubica",
year = "2013",
abstract = "Na primeru procurivanja i ostecenja parovoda sveze pare u termoelektranama i toplanama
prikazan je metodoloski pristup utvrdivanja uzroka otkaza i saniranja ostecenja. Dati pristup se
moze primeniti za slicne konstrukcije, a njegova primena u preventivnom odrzavanju doprinosi
produzenju radnog veka parovoda.",
publisher = "Tehnološki fakultet Zvornik, BiH",
journal = "3rd International Congress „ Engineering, environment and materials in processing industry“",
title = "Methodological approach to recovery of damages of the steamlines in thermal power plants and heating plants, Metodološki pristup sanaciji oštećenja parovoda u termoelektranama i toplanama",
pages = "392-382",
url = "https://hdl.handle.net/21.15107/rcub_rims_781"
}
Aleksić, V., Simić, R., Stojanović, Z.,& Milović, L.. (2013). Methodological approach to recovery of damages of the steamlines in thermal power plants and heating plants. in 3rd International Congress „ Engineering, environment and materials in processing industry“
Tehnološki fakultet Zvornik, BiH., 382-392.
https://hdl.handle.net/21.15107/rcub_rims_781
Aleksić V, Simić R, Stojanović Z, Milović L. Methodological approach to recovery of damages of the steamlines in thermal power plants and heating plants. in 3rd International Congress „ Engineering, environment and materials in processing industry“. 2013;:382-392.
https://hdl.handle.net/21.15107/rcub_rims_781 .
Aleksić, Vujadin, Simić, Radoje, Stojanović, Zoran, Milović, Ljubica, "Methodological approach to recovery of damages of the steamlines in thermal power plants and heating plants" in 3rd International Congress „ Engineering, environment and materials in processing industry“ (2013):382-392,
https://hdl.handle.net/21.15107/rcub_rims_781 .

Control of hazardous waste in the laboratory for metal testing-current problems

Aleksić, Vujadin; Bulatović, Srđan; Milović, Ljubica

(Udruženje inženjera Srbije za koroziju i zaštitu materijala, Srbija, 2013)

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Bulatović, Srđan
AU  - Milović, Ljubica
PY  - 2013
UR  - http://rims.institutims.rs/handle/123456789/769
AB  - This paper presents a controlled process of collecting, identification, classification and labeling of waste and
hazardous materials in laboratory for testing materials of the Institute of testing materials {Institute IMS).
Waste management and hazardous materials are carried out by applying appropriate protective measures, in
order not to endanger the lives and health of people and does not pollute the environment. This paper
highhghts the problems related to the disposal, storage and retrieval of small quantities of hazardous waste,
as is the case in the laboratory for material testing. It should not be ignored, because small amounts of
generated hardly degradable waste, if left without any care, can harm the environment and impact on quality
of life.
PB  - Udruženje inženjera Srbije za koroziju i zaštitu materijala, Srbija
C3  - 15 YuCorr-International Conference „Meeting point of the science and practice in the fields of corrosion, materials and environmental protection“
T1  - Control of hazardous waste in the laboratory for metal testing-current problems
T1  - Kontrolisanje opasnog otpada u laboratoriji za ispitivanje metala - aktuelni problemi
EP  - 161
SP  - 153
UR  - https://hdl.handle.net/21.15107/rcub_rims_769
ER  - 
@conference{
author = "Aleksić, Vujadin and Bulatović, Srđan and Milović, Ljubica",
year = "2013",
abstract = "This paper presents a controlled process of collecting, identification, classification and labeling of waste and
hazardous materials in laboratory for testing materials of the Institute of testing materials {Institute IMS).
Waste management and hazardous materials are carried out by applying appropriate protective measures, in
order not to endanger the lives and health of people and does not pollute the environment. This paper
highhghts the problems related to the disposal, storage and retrieval of small quantities of hazardous waste,
as is the case in the laboratory for material testing. It should not be ignored, because small amounts of
generated hardly degradable waste, if left without any care, can harm the environment and impact on quality
of life.",
publisher = "Udruženje inženjera Srbije za koroziju i zaštitu materijala, Srbija",
journal = "15 YuCorr-International Conference „Meeting point of the science and practice in the fields of corrosion, materials and environmental protection“",
title = "Control of hazardous waste in the laboratory for metal testing-current problems, Kontrolisanje opasnog otpada u laboratoriji za ispitivanje metala - aktuelni problemi",
pages = "161-153",
url = "https://hdl.handle.net/21.15107/rcub_rims_769"
}
Aleksić, V., Bulatović, S.,& Milović, L.. (2013). Control of hazardous waste in the laboratory for metal testing-current problems. in 15 YuCorr-International Conference „Meeting point of the science and practice in the fields of corrosion, materials and environmental protection“
Udruženje inženjera Srbije za koroziju i zaštitu materijala, Srbija., 153-161.
https://hdl.handle.net/21.15107/rcub_rims_769
Aleksić V, Bulatović S, Milović L. Control of hazardous waste in the laboratory for metal testing-current problems. in 15 YuCorr-International Conference „Meeting point of the science and practice in the fields of corrosion, materials and environmental protection“. 2013;:153-161.
https://hdl.handle.net/21.15107/rcub_rims_769 .
Aleksić, Vujadin, Bulatović, Srđan, Milović, Ljubica, "Control of hazardous waste in the laboratory for metal testing-current problems" in 15 YuCorr-International Conference „Meeting point of the science and practice in the fields of corrosion, materials and environmental protection“ (2013):153-161,
https://hdl.handle.net/21.15107/rcub_rims_769 .