TY  - CONF
AU  - Aleksić, Vujadin
AU  - Zečević, Bojana
AU  - Bulatović, Srđan
AU  - Maksimović, Ana
AU  - Milović, Ljubica
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/681
AB  - Pipelines, with specifics in design, construction, testing and safety requirements must be designed
based on all relevant influences to ensure that they are safe during their working life. Allowable
stresses must be limited by possible errors in working conditions, in order to completely eliminate
the uncertainty arising from the production, the calculation model, the actual working conditions and
the characteristics and behavior of the material. In the paper, on the example of modeling and
calculation of the corrosion-damaged structure of the ammonia (NH3) transfer pipeline, a
methodological approach to the calculation using the Finite Element Method (FEM), is shown, in
accordance with the methods defined by the new and general approach to standardization and
technical harmonization for pressure equipment (Pressure Equipment Directive - PED 97/23 EC).
The paper uses advanced modeling techniques of corroded surfaces, based on FEM, with the aim of
developing a procedure for assessing the residual strength of steel pipelines operating in the
environmental conditions of the chemical products industry. The presentation of possible damages
and consequences caused by the corrosion of steel pipelines in the chemical products industry is also
given, and the possibility of taking measures to prevent such occurrences is discussed.
PB  - SERBIAN SOCIETY OF CORROSION AND MATERIALS PROTECTION (UISKOZAM)
C3  - XXIV YuCorr, Divčibare, Serbia-Proceedings
T1  - The Finite Element Method in the function of corrosion damage assessment of pipelines
EP  - 225
SP  - 216
UR  - https://hdl.handle.net/21.15107/rcub_rims_681
ER  - 

@conference{
author = "Aleksić, Vujadin and Zečević, Bojana and Bulatović, Srđan and Maksimović, Ana and Milović, Ljubica",
year = "2023",
abstract = "Pipelines, with specifics in design, construction, testing and safety requirements must be designed
based on all relevant influences to ensure that they are safe during their working life. Allowable
stresses must be limited by possible errors in working conditions, in order to completely eliminate
the uncertainty arising from the production, the calculation model, the actual working conditions and
the characteristics and behavior of the material. In the paper, on the example of modeling and
calculation of the corrosion-damaged structure of the ammonia (NH3) transfer pipeline, a
methodological approach to the calculation using the Finite Element Method (FEM), is shown, in
accordance with the methods defined by the new and general approach to standardization and
technical harmonization for pressure equipment (Pressure Equipment Directive - PED 97/23 EC).
The paper uses advanced modeling techniques of corroded surfaces, based on FEM, with the aim of
developing a procedure for assessing the residual strength of steel pipelines operating in the
environmental conditions of the chemical products industry. The presentation of possible damages
and consequences caused by the corrosion of steel pipelines in the chemical products industry is also
given, and the possibility of taking measures to prevent such occurrences is discussed.",
publisher = "SERBIAN SOCIETY OF CORROSION AND MATERIALS PROTECTION (UISKOZAM)",
journal = "XXIV YuCorr, Divčibare, Serbia-Proceedings",
title = "The Finite Element Method in the function of corrosion damage assessment of pipelines",
pages = "225-216",
url = "https://hdl.handle.net/21.15107/rcub_rims_681"
}

Aleksić, V., Zečević, B., Bulatović, S., Maksimović, A.,& Milović, L.. (2023). The Finite Element Method in the function of corrosion damage assessment of pipelines. in XXIV YuCorr, Divčibare, Serbia-Proceedings
SERBIAN SOCIETY OF CORROSION AND MATERIALS PROTECTION (UISKOZAM)., 216-225.
https://hdl.handle.net/21.15107/rcub_rims_681

Aleksić V, Zečević B, Bulatović S, Maksimović A, Milović L. The Finite Element Method in the function of corrosion damage assessment of pipelines. in XXIV YuCorr, Divčibare, Serbia-Proceedings. 2023;:216-225.
https://hdl.handle.net/21.15107/rcub_rims_681 .

Aleksić, Vujadin, Zečević, Bojana, Bulatović, Srđan, Maksimović, Ana, Milović, Ljubica, "The Finite Element Method in the function of corrosion damage assessment of pipelines" in XXIV YuCorr, Divčibare, Serbia-Proceedings (2023):216-225,
https://hdl.handle.net/21.15107/rcub_rims_681 .

TY  - CONF
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Zečević, Bojana
AU  - Ristić, Ognjen
AU  - Maksimović, Ana
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/680
AB  - This paper describes the procedures for preventing corrosion of welded joints. Also, a theoretical
overview of the forms of corrosion that are most prevalent in welded joints is presented.
The concept of corrosion in welded joints is very pronounced in real conditions. Welded joints are
inseparable joints that form an integral part of steel welded constructions. The internal energy
increases during the fusion welding especially in the heat affected places around the welded joint,
which become initiating spot of corrosion degradation. That is why it is of vital importance to focus
on ways to increase the resistance of welded structures to the impact of corrosion.
PB  - SERBIAN SOCIETY OF CORROSION AND MATERIALS PROTECTION (UISKOZAM)
C3  - XXIV YuCorr, Divčibare, Serbia-Proceedings
T1  - Procedures for preventing corrosion of welded joints
EP  - 215
SP  - 210
UR  - https://hdl.handle.net/21.15107/rcub_rims_680
ER  - 

@conference{
author = "Bulatović, Srđan and Aleksić, Vujadin and Zečević, Bojana and Ristić, Ognjen and Maksimović, Ana",
year = "2023",
abstract = "This paper describes the procedures for preventing corrosion of welded joints. Also, a theoretical
overview of the forms of corrosion that are most prevalent in welded joints is presented.
The concept of corrosion in welded joints is very pronounced in real conditions. Welded joints are
inseparable joints that form an integral part of steel welded constructions. The internal energy
increases during the fusion welding especially in the heat affected places around the welded joint,
which become initiating spot of corrosion degradation. That is why it is of vital importance to focus
on ways to increase the resistance of welded structures to the impact of corrosion.",
publisher = "SERBIAN SOCIETY OF CORROSION AND MATERIALS PROTECTION (UISKOZAM)",
journal = "XXIV YuCorr, Divčibare, Serbia-Proceedings",
title = "Procedures for preventing corrosion of welded joints",
pages = "215-210",
url = "https://hdl.handle.net/21.15107/rcub_rims_680"
}

Bulatović, S., Aleksić, V., Zečević, B., Ristić, O.,& Maksimović, A.. (2023). Procedures for preventing corrosion of welded joints. in XXIV YuCorr, Divčibare, Serbia-Proceedings
SERBIAN SOCIETY OF CORROSION AND MATERIALS PROTECTION (UISKOZAM)., 210-215.
https://hdl.handle.net/21.15107/rcub_rims_680

Bulatović S, Aleksić V, Zečević B, Ristić O, Maksimović A. Procedures for preventing corrosion of welded joints. in XXIV YuCorr, Divčibare, Serbia-Proceedings. 2023;:210-215.
https://hdl.handle.net/21.15107/rcub_rims_680 .

Bulatović, Srđan, Aleksić, Vujadin, Zečević, Bojana, Ristić, Ognjen, Maksimović, Ana, "Procedures for preventing corrosion of welded joints" in XXIV YuCorr, Divčibare, Serbia-Proceedings (2023):210-215,
https://hdl.handle.net/21.15107/rcub_rims_680 .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Zečević, Bojana
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/682
AB  - Hydroelectric generating units at hydro power plants consist of turbine and hydromechanical equipment, which components could be subject to a large number of European Directives. Responsibility of turbine manufacturer is to make sure that certain components of equipment are in agreement with requirements of the specific Directive. This paper offers the opportunity to perceive the possibility of applying the Pressure Equipment Directive 97/23/EC, Simple Pressure Vessels Directive 2009/105/EC, Machinery Directive 98/37/EEC and Low Voltage Directive 2006/95/EC for turbine equipment at hydro power plants ‘Djerdap 1’ and ‘Djerdap 2’, because components of the turbine regulator and of the lubrication system, of the runner and measurement and regulation system are individually subject to different Directives. The overview of the possible approach regarding the standardization and technical harmonization of turbine equipment components for easier assessment of their integrity is also presented in this paper.
T2  - International Journal of Manufacturing Economics and Management
T1  - European Directives Through the Integrity Evaluation of the Mechanical Equipment
IS  - 1
VL  - 3
DO  - 10.54684/ijmem.2023.3.1.17
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Zečević, Bojana",
year = "2023",
abstract = "Hydroelectric generating units at hydro power plants consist of turbine and hydromechanical equipment, which components could be subject to a large number of European Directives. Responsibility of turbine manufacturer is to make sure that certain components of equipment are in agreement with requirements of the specific Directive. This paper offers the opportunity to perceive the possibility of applying the Pressure Equipment Directive 97/23/EC, Simple Pressure Vessels Directive 2009/105/EC, Machinery Directive 98/37/EEC and Low Voltage Directive 2006/95/EC for turbine equipment at hydro power plants ‘Djerdap 1’ and ‘Djerdap 2’, because components of the turbine regulator and of the lubrication system, of the runner and measurement and regulation system are individually subject to different Directives. The overview of the possible approach regarding the standardization and technical harmonization of turbine equipment components for easier assessment of their integrity is also presented in this paper.",
journal = "International Journal of Manufacturing Economics and Management",
title = "European Directives Through the Integrity Evaluation of the Mechanical Equipment",
number = "1",
volume = "3",
doi = "10.54684/ijmem.2023.3.1.17"
}

Bulatović, S., Aleksić, V.,& Zečević, B.. (2023). European Directives Through the Integrity Evaluation of the Mechanical Equipment. in International Journal of Manufacturing Economics and Management, 3(1).
https://doi.org/10.54684/ijmem.2023.3.1.17

Bulatović S, Aleksić V, Zečević B. European Directives Through the Integrity Evaluation of the Mechanical Equipment. in International Journal of Manufacturing Economics and Management. 2023;3(1).
doi:10.54684/ijmem.2023.3.1.17 .

Bulatović, Srđan, Aleksić, Vujadin, Zečević, Bojana, "European Directives Through the Integrity Evaluation of the Mechanical Equipment" in International Journal of Manufacturing Economics and Management, 3, no. 1 (2023),
https://doi.org/10.54684/ijmem.2023.3.1.17 . .

TY  - CONF
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Zečević, Bojana
AU  - Prochaska, Biljana
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/679
AB  - After several decades of constant exploitation of the horizontal bulb turbine, which is an integral
part of the hydroelectric power unit, empirically, the formation of a crack occurs in the turbine shaft
due to the influence of corrosion, erosion and cavitation.
Through experimental tests and calculations it has been determined that values of bending stresses
of the turbine, which occur due to the action of fatigue and corrosion, as well as stress concentration,
are bigger than 25 MPa for flanges exposed to water, and in other case bigger than 40 MPa for
flanges exposed to `corrosive water` and can cause the occurrence of surface cracks on the transition
radius between the cylindrical part of the shaft and the flange. It has been determined that stress
values in the zone under the influence of bending stresses were bigger than allowable values, which
led to the occurrence of many cracks due to fatigue corrosion. One of those cracks caused the failure
of the shaft and of the whole turbine.
C3  - 16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI
T1  - Occurrence of cracks due to inadequate turbine shaft construction
EP  - 192
SP  - 187
UR  - https://hdl.handle.net/21.15107/rcub_rims_679
ER  - 

@conference{
author = "Bulatović, Srđan and Aleksić, Vujadin and Zečević, Bojana and Prochaska, Biljana",
year = "2023",
abstract = "After several decades of constant exploitation of the horizontal bulb turbine, which is an integral
part of the hydroelectric power unit, empirically, the formation of a crack occurs in the turbine shaft
due to the influence of corrosion, erosion and cavitation.
Through experimental tests and calculations it has been determined that values of bending stresses
of the turbine, which occur due to the action of fatigue and corrosion, as well as stress concentration,
are bigger than 25 MPa for flanges exposed to water, and in other case bigger than 40 MPa for
flanges exposed to `corrosive water` and can cause the occurrence of surface cracks on the transition
radius between the cylindrical part of the shaft and the flange. It has been determined that stress
values in the zone under the influence of bending stresses were bigger than allowable values, which
led to the occurrence of many cracks due to fatigue corrosion. One of those cracks caused the failure
of the shaft and of the whole turbine.",
journal = "16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI",
title = "Occurrence of cracks due to inadequate turbine shaft construction",
pages = "192-187",
url = "https://hdl.handle.net/21.15107/rcub_rims_679"
}

Bulatović, S., Aleksić, V., Zečević, B.,& Prochaska, B.. (2023). Occurrence of cracks due to inadequate turbine shaft construction. in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI, 187-192.
https://hdl.handle.net/21.15107/rcub_rims_679

Bulatović S, Aleksić V, Zečević B, Prochaska B. Occurrence of cracks due to inadequate turbine shaft construction. in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI. 2023;:187-192.
https://hdl.handle.net/21.15107/rcub_rims_679 .

Bulatović, Srđan, Aleksić, Vujadin, Zečević, Bojana, Prochaska, Biljana, "Occurrence of cracks due to inadequate turbine shaft construction" in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI (2023):187-192,
https://hdl.handle.net/21.15107/rcub_rims_679 .

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Bulatović, Srđan
AU  - Zečević, Bojana
AU  - Maksimović, Ana
AU  - Milović, Ljubica
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/678
AB  - In the paper, based on the results of experimental research on the behavior of samples in the form of
round smooth test specimens (STS) made of high strength low alloy steel (HSLA), Nionikral 70 (NN
70), under conditions of low cycle fatigue (LCF), a computational stress analysis was performed
using numerical methods.
Experimental investigations of the behavior of the samples were performed with controlled and fully
reversible deformation ( /2 = const, R = min/ max = 1), according to the ISO 12106:2003 (E)
standard.
For computational analyses, the method of least squares (in the Excel program) and the finite
element method (FEM) (in the SolidWorks program) were used. The behavior of HSLA steel during
low cycle fatigue (LCF) simulation was analyzed in the Cosmos module of the SolidWorks program.
On the basis of the analysis of the results of the stress deformation state and the determination of the
life span through the isolines of the life span and comparison with the results of experimental tests, a
graphic representation is given. Specific load cycles involving the entire round smooth test specimen
ligament for a specific load in a wide range of LCF loads were analyzed.
The analyzes showed the justification of the effort to solve the life assessment of steel subjected to
low cycle fatigue (LCF) numerically. The results of experimental tests and simulation tests also gave
us important data on understanding the LCF behavior of HSLA steel NN 70.
C3  - 16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI
T1  - Life assessment using the finite element method of high-strength low-alloy steel samples exposed to low-cycle fatigue
EP  - 499
SP  - 490
UR  - https://hdl.handle.net/21.15107/rcub_rims_678
ER  - 

@conference{
author = "Aleksić, Vujadin and Bulatović, Srđan and Zečević, Bojana and Maksimović, Ana and Milović, Ljubica",
year = "2023",
abstract = "In the paper, based on the results of experimental research on the behavior of samples in the form of
round smooth test specimens (STS) made of high strength low alloy steel (HSLA), Nionikral 70 (NN
70), under conditions of low cycle fatigue (LCF), a computational stress analysis was performed
using numerical methods.
Experimental investigations of the behavior of the samples were performed with controlled and fully
reversible deformation ( /2 = const, R = min/ max = 1), according to the ISO 12106:2003 (E)
standard.
For computational analyses, the method of least squares (in the Excel program) and the finite
element method (FEM) (in the SolidWorks program) were used. The behavior of HSLA steel during
low cycle fatigue (LCF) simulation was analyzed in the Cosmos module of the SolidWorks program.
On the basis of the analysis of the results of the stress deformation state and the determination of the
life span through the isolines of the life span and comparison with the results of experimental tests, a
graphic representation is given. Specific load cycles involving the entire round smooth test specimen
ligament for a specific load in a wide range of LCF loads were analyzed.
The analyzes showed the justification of the effort to solve the life assessment of steel subjected to
low cycle fatigue (LCF) numerically. The results of experimental tests and simulation tests also gave
us important data on understanding the LCF behavior of HSLA steel NN 70.",
journal = "16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI",
title = "Life assessment using the finite element method of high-strength low-alloy steel samples exposed to low-cycle fatigue",
pages = "499-490",
url = "https://hdl.handle.net/21.15107/rcub_rims_678"
}

Aleksić, V., Bulatović, S., Zečević, B., Maksimović, A.,& Milović, L.. (2023). Life assessment using the finite element method of high-strength low-alloy steel samples exposed to low-cycle fatigue. in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI, 490-499.
https://hdl.handle.net/21.15107/rcub_rims_678

Aleksić V, Bulatović S, Zečević B, Maksimović A, Milović L. Life assessment using the finite element method of high-strength low-alloy steel samples exposed to low-cycle fatigue. in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI. 2023;:490-499.
https://hdl.handle.net/21.15107/rcub_rims_678 .

Aleksić, Vujadin, Bulatović, Srđan, Zečević, Bojana, Maksimović, Ana, Milović, Ljubica, "Life assessment using the finite element method of high-strength low-alloy steel samples exposed to low-cycle fatigue" in 16th International Conference on Accomplishments in Mechanical and Industrial Engineering DEMI (2023):490-499,
https://hdl.handle.net/21.15107/rcub_rims_678 .

TY  - JOUR
AU  - Maksimović, Ana
AU  - Petrovski, Blagoj
AU  - Milović, Ljubica
AU  - Zečević, Bojana
AU  - Aleksić, Vujadin
AU  - Bulatović, Srđan
AU  - Bekrić, Dragoljub
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/660
AB  - Most serious weldment failures have catastrophic consequences in terms of damage to other equipment, loss of production, and risks to worker health and safety. For the above reasons, there is a tendency to find the line between safety and disaster, and this requires a guarantee of the integrity of the welded structure even if a crack is present. The structural and mechanical heterogeneity of a welded joint affects its resistance to cracking in both the elastic and plastic regions. Therefore, it is important to define the test method and the position of the fatigue crack. The behavior of an elasto-plastic material, during stable crack growth can be described by the J-Δa diagram. As the crack propagates, a point on the curve is defined, which represents the critical value of the J-integral. The aim of this experiment is to determine JIC value and the procedure is reflected in the determination of the R-curve, i.e., the J‒Δa curve, which consists of the value of the J-integral for uniform crack increments Δa. In this paper, precracked SEN(B) specimens with the fatigue crack positioned in the weld metal (WM) were tested according to standard ASTM E1820 at room temperature (RT), -20 °C and -30 °C.
PB  - Elsevier B.V.
T2  - Procedia Structural Integrity
T1  - Experimental Determination of JIc for a HSLA Steel Welded Joint
EP  - 194
SP  - 190
VL  - 48
DO  - 10.1016/j.prostr.2023.07.147
ER  - 

@article{
author = "Maksimović, Ana and Petrovski, Blagoj and Milović, Ljubica and Zečević, Bojana and Aleksić, Vujadin and Bulatović, Srđan and Bekrić, Dragoljub",
year = "2023",
abstract = "Most serious weldment failures have catastrophic consequences in terms of damage to other equipment, loss of production, and risks to worker health and safety. For the above reasons, there is a tendency to find the line between safety and disaster, and this requires a guarantee of the integrity of the welded structure even if a crack is present. The structural and mechanical heterogeneity of a welded joint affects its resistance to cracking in both the elastic and plastic regions. Therefore, it is important to define the test method and the position of the fatigue crack. The behavior of an elasto-plastic material, during stable crack growth can be described by the J-Δa diagram. As the crack propagates, a point on the curve is defined, which represents the critical value of the J-integral. The aim of this experiment is to determine JIC value and the procedure is reflected in the determination of the R-curve, i.e., the J‒Δa curve, which consists of the value of the J-integral for uniform crack increments Δa. In this paper, precracked SEN(B) specimens with the fatigue crack positioned in the weld metal (WM) were tested according to standard ASTM E1820 at room temperature (RT), -20 °C and -30 °C.",
publisher = "Elsevier B.V.",
journal = "Procedia Structural Integrity",
title = "Experimental Determination of JIc for a HSLA Steel Welded Joint",
pages = "194-190",
volume = "48",
doi = "10.1016/j.prostr.2023.07.147"
}

Maksimović, A., Petrovski, B., Milović, L., Zečević, B., Aleksić, V., Bulatović, S.,& Bekrić, D.. (2023). Experimental Determination of JIc for a HSLA Steel Welded Joint. in Procedia Structural Integrity
Elsevier B.V.., 48, 190-194.
https://doi.org/10.1016/j.prostr.2023.07.147

Maksimović A, Petrovski B, Milović L, Zečević B, Aleksić V, Bulatović S, Bekrić D. Experimental Determination of JIc for a HSLA Steel Welded Joint. in Procedia Structural Integrity. 2023;48:190-194.
doi:10.1016/j.prostr.2023.07.147 .

Maksimović, Ana, Petrovski, Blagoj, Milović, Ljubica, Zečević, Bojana, Aleksić, Vujadin, Bulatović, Srđan, Bekrić, Dragoljub, "Experimental Determination of JIc for a HSLA Steel Welded Joint" in Procedia Structural Integrity, 48 (2023):190-194,
https://doi.org/10.1016/j.prostr.2023.07.147 . .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Zečević, Bojana
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/656
AB  - Fracture mechanics, as a scientific discipline dealing with the study of cracks in welded structures, has defined parameters and introduced new test methods in order to better determine the tendency to crack growth, critical conditions for rapid fracture development, material resistance to rapid crack propagation and better definition of other parameters for assessing the behaviour of the material and the safety of the structure in the presence of cracks. In this paper, the focus is on determination of the parameter of elastic-plastic mechanics of J-integral, more precisely, on examination of the critical value of J-integral (JIc) of the welded joint of HSLA steel. The position of the tip of the fatigue crack and the properties of the region where fracture propagation occurs are main indicators of influence of the heterogeneity of the NN-70 welded structure and mechanical properties. Resistance to cracking in the welded joint shows that the heterogeneity has a major impact on the resistance to crack initiation and propagation, in elastic as well as in the plastic region.
PB  - Strojarski Facultet
T2  - Tehnicki Vjesnik
T1  - Experimental Determination of the Critical Value of the J-Integral that Refers to the HSLA Steel Welded Joint
DO  - 10.17559/TV-20220419093052
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Milović, Ljubica and Zečević, Bojana",
year = "2023",
abstract = "Fracture mechanics, as a scientific discipline dealing with the study of cracks in welded structures, has defined parameters and introduced new test methods in order to better determine the tendency to crack growth, critical conditions for rapid fracture development, material resistance to rapid crack propagation and better definition of other parameters for assessing the behaviour of the material and the safety of the structure in the presence of cracks. In this paper, the focus is on determination of the parameter of elastic-plastic mechanics of J-integral, more precisely, on examination of the critical value of J-integral (JIc) of the welded joint of HSLA steel. The position of the tip of the fatigue crack and the properties of the region where fracture propagation occurs are main indicators of influence of the heterogeneity of the NN-70 welded structure and mechanical properties. Resistance to cracking in the welded joint shows that the heterogeneity has a major impact on the resistance to crack initiation and propagation, in elastic as well as in the plastic region.",
publisher = "Strojarski Facultet",
journal = "Tehnicki Vjesnik",
title = "Experimental Determination of the Critical Value of the J-Integral that Refers to the HSLA Steel Welded Joint",
doi = "10.17559/TV-20220419093052"
}

Bulatović, S., Aleksić, V., Milović, L.,& Zečević, B.. (2023). Experimental Determination of the Critical Value of the J-Integral that Refers to the HSLA Steel Welded Joint. in Tehnicki Vjesnik
Strojarski Facultet..
https://doi.org/10.17559/TV-20220419093052

Bulatović S, Aleksić V, Milović L, Zečević B. Experimental Determination of the Critical Value of the J-Integral that Refers to the HSLA Steel Welded Joint. in Tehnicki Vjesnik. 2023;.
doi:10.17559/TV-20220419093052 .

Bulatović, Srđan, Aleksić, Vujadin, Milović, Ljubica, Zečević, Bojana, "Experimental Determination of the Critical Value of the J-Integral that Refers to the HSLA Steel Welded Joint" in Tehnicki Vjesnik (2023),
https://doi.org/10.17559/TV-20220419093052 . .

TY  - JOUR
AU  - Zečević, Bojana
AU  - Maksimović, Ana
AU  - Milović, Ljubica
AU  - Aleksić, Vujadin
AU  - Bulatović, Srđan
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/654
AB  - The influence of temperature on the fatigue crack growth parameter, was analyzed by testing chromium-molybdenum steel of the new generation additionally alloyed with vanadium, designed for high temperatures application. The paper presents a comparison of the fatigue threshold value ΔKth and the fatigue crack growth rate da/dN of the specimens taken from the pipe made of virgin steel, tested at room (RT) and operating (HT) temperatures of 540 °C. The influence of the location of the notch and crack initiation, as well as the test temperature, have a decisive effect on the fatigue threshold values ΔKth of the chromium-molybdenum alloyed steel of the new generation additionally alloyed with vanadium for high temperatures application.
PB  - Elsevier B.V.
T2  - Procedia Structural Integrity
T1  - Fatigue crack growth rate of a low carbon microalloyed steel for high temperatures
EP  - 301
SP  - 296
VL  - 48
DO  - 10.1016/j.prostr.2023.07.129
ER  - 

@article{
author = "Zečević, Bojana and Maksimović, Ana and Milović, Ljubica and Aleksić, Vujadin and Bulatović, Srđan",
year = "2023",
abstract = "The influence of temperature on the fatigue crack growth parameter, was analyzed by testing chromium-molybdenum steel of the new generation additionally alloyed with vanadium, designed for high temperatures application. The paper presents a comparison of the fatigue threshold value ΔKth and the fatigue crack growth rate da/dN of the specimens taken from the pipe made of virgin steel, tested at room (RT) and operating (HT) temperatures of 540 °C. The influence of the location of the notch and crack initiation, as well as the test temperature, have a decisive effect on the fatigue threshold values ΔKth of the chromium-molybdenum alloyed steel of the new generation additionally alloyed with vanadium for high temperatures application.",
publisher = "Elsevier B.V.",
journal = "Procedia Structural Integrity",
title = "Fatigue crack growth rate of a low carbon microalloyed steel for high temperatures",
pages = "301-296",
volume = "48",
doi = "10.1016/j.prostr.2023.07.129"
}

Zečević, B., Maksimović, A., Milović, L., Aleksić, V.,& Bulatović, S.. (2023). Fatigue crack growth rate of a low carbon microalloyed steel for high temperatures. in Procedia Structural Integrity
Elsevier B.V.., 48, 296-301.
https://doi.org/10.1016/j.prostr.2023.07.129

Zečević B, Maksimović A, Milović L, Aleksić V, Bulatović S. Fatigue crack growth rate of a low carbon microalloyed steel for high temperatures. in Procedia Structural Integrity. 2023;48:296-301.
doi:10.1016/j.prostr.2023.07.129 .

Zečević, Bojana, Maksimović, Ana, Milović, Ljubica, Aleksić, Vujadin, Bulatović, Srđan, "Fatigue crack growth rate of a low carbon microalloyed steel for high temperatures" in Procedia Structural Integrity, 48 (2023):296-301,
https://doi.org/10.1016/j.prostr.2023.07.129 . .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Mladenović, Mladen
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/498
AB  - The aim of this paper is to present the influence of differ-ent temperatures on the impact toughness of welded joint of high strength low-alloy steel. The results of impact tests for all three constituents of the manual arc welded joint of NN-70 steel at temperatures range from 20 °C to -100 °C are presented. It has been shown that impact tests of high-strength low-alloy (HSLA) steels at room and lower tem-peratures indicate that temperature significantly affects the toughness of high-strength low-alloy steels in the context that lowering the test temperature leads to creation of brittle fracture in the form of a successive decrease in total impact energy. This indicator is very important in the further design and exploitation of welded steel structures.
T2  - Structural Integrity and Life, Special Issue
T1  - Influence of Temperature on Impact Toughness of HSLA Steels
EP  - 94
SP  - 91
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_498
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Mladenović, Mladen",
year = "2023",
abstract = "The aim of this paper is to present the influence of differ-ent temperatures on the impact toughness of welded joint of high strength low-alloy steel. The results of impact tests for all three constituents of the manual arc welded joint of NN-70 steel at temperatures range from 20 °C to -100 °C are presented. It has been shown that impact tests of high-strength low-alloy (HSLA) steels at room and lower tem-peratures indicate that temperature significantly affects the toughness of high-strength low-alloy steels in the context that lowering the test temperature leads to creation of brittle fracture in the form of a successive decrease in total impact energy. This indicator is very important in the further design and exploitation of welded steel structures.",
journal = "Structural Integrity and Life, Special Issue",
title = "Influence of Temperature on Impact Toughness of HSLA Steels",
pages = "94-91",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_498"
}

Bulatović, S., Aleksić, V.,& Mladenović, M.. (2023). Influence of Temperature on Impact Toughness of HSLA Steels. in Structural Integrity and Life, Special Issue, 23, 91-94.
https://hdl.handle.net/21.15107/rcub_rims_498

Bulatović S, Aleksić V, Mladenović M. Influence of Temperature on Impact Toughness of HSLA Steels. in Structural Integrity and Life, Special Issue. 2023;23:91-94.
https://hdl.handle.net/21.15107/rcub_rims_498 .

Bulatović, Srđan, Aleksić, Vujadin, Mladenović, Mladen, "Influence of Temperature on Impact Toughness of HSLA Steels" in Structural Integrity and Life, Special Issue, 23 (2023):91-94,
https://hdl.handle.net/21.15107/rcub_rims_498 .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Zečević, Bojana
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/661
AB  - Welded joint is a critical region of a welded structure and fracture mechanics analysis is inevitable
in the structural integrity assessment of all welded structures. This paper shows the determining of
parameters of the fatigue crack for constituents of welded joints produced of high strength low
alloyed steel. The applied methodology refers to the Paris relation where the link was established
between the variable load quantity or the corresponding stress intensity factor range and crack
growth per cycle. Results have shown that the position of the notch and crack initiation affect the
values of the stress intensity range of fatigue threshold ΔKth and parameters in the Paris’ equation.
This is mostly expressed when determining growth parameters of the fatigue crack in heat affected
zone of HSLA steel, where different changes of growth speed of the fatigue crack clearly express
differences in structure of the crack pass
T2  - Advanced Technologies & Materials
T1  - Determining of the Fatigue Crack Growth Rate of HSLA Steel at Room Temperature
IS  - 1
VL  - 47
DO  - 10.24867/ATM-2022-1-001
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Milović, Ljubica and Zečević, Bojana",
year = "2022",
abstract = "Welded joint is a critical region of a welded structure and fracture mechanics analysis is inevitable
in the structural integrity assessment of all welded structures. This paper shows the determining of
parameters of the fatigue crack for constituents of welded joints produced of high strength low
alloyed steel. The applied methodology refers to the Paris relation where the link was established
between the variable load quantity or the corresponding stress intensity factor range and crack
growth per cycle. Results have shown that the position of the notch and crack initiation affect the
values of the stress intensity range of fatigue threshold ΔKth and parameters in the Paris’ equation.
This is mostly expressed when determining growth parameters of the fatigue crack in heat affected
zone of HSLA steel, where different changes of growth speed of the fatigue crack clearly express
differences in structure of the crack pass",
journal = "Advanced Technologies & Materials",
title = "Determining of the Fatigue Crack Growth Rate of HSLA Steel at Room Temperature",
number = "1",
volume = "47",
doi = "10.24867/ATM-2022-1-001"
}

Bulatović, S., Aleksić, V., Milović, L.,& Zečević, B.. (2022). Determining of the Fatigue Crack Growth Rate of HSLA Steel at Room Temperature. in Advanced Technologies & Materials, 47(1).
https://doi.org/10.24867/ATM-2022-1-001

Bulatović S, Aleksić V, Milović L, Zečević B. Determining of the Fatigue Crack Growth Rate of HSLA Steel at Room Temperature. in Advanced Technologies & Materials. 2022;47(1).
doi:10.24867/ATM-2022-1-001 .

Bulatović, Srđan, Aleksić, Vujadin, Milović, Ljubica, Zečević, Bojana, "Determining of the Fatigue Crack Growth Rate of HSLA Steel at Room Temperature" in Advanced Technologies & Materials, 47, no. 1 (2022),
https://doi.org/10.24867/ATM-2022-1-001 . .

TY  - CONF
AU  - Zečević, Bojana
AU  - Maksimović, Ana
AU  - Milović, Ljubica
AU  - Aleksić, Vujadin
AU  - Grbović, Aleksandar
AU  - Bulatović, Srđan
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/624
AB  - Steel grade 14MoV6 3 is used for manufacturing of boilers and steam pipelines designed for steam temperatures up to 560°C. This paper presents the numerical simulation of a CT-specimen, using the finite element method. The analysis was performed using Ansys Workbench R21, and represents the initial stage of extensive research involving the behaviour of 14MoV6 3 steel. The goal was to simulate the real experimental conditions, including boundary conditions and loads, which were defined in accordance with relevant standards, and to obtain representative results. The temperature dependent mechanical properties needed for the simulation of plastic behaviour of such specimens under tensile loads were obtained from the experimental data and the literature.
PB  - Elsevier B.V.
C3  - 23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity
T1  - Numerical simulation of 14Mov6-3 steel CT-specimen Fracture Behavior
VL  - 42
DO  - 10.1016/j.prostr.2022.12.189
ER  - 

@conference{
author = "Zečević, Bojana and Maksimović, Ana and Milović, Ljubica and Aleksić, Vujadin and Grbović, Aleksandar and Bulatović, Srđan",
year = "2022",
abstract = "Steel grade 14MoV6 3 is used for manufacturing of boilers and steam pipelines designed for steam temperatures up to 560°C. This paper presents the numerical simulation of a CT-specimen, using the finite element method. The analysis was performed using Ansys Workbench R21, and represents the initial stage of extensive research involving the behaviour of 14MoV6 3 steel. The goal was to simulate the real experimental conditions, including boundary conditions and loads, which were defined in accordance with relevant standards, and to obtain representative results. The temperature dependent mechanical properties needed for the simulation of plastic behaviour of such specimens under tensile loads were obtained from the experimental data and the literature.",
publisher = "Elsevier B.V.",
journal = "23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity",
title = "Numerical simulation of 14Mov6-3 steel CT-specimen Fracture Behavior",
volume = "42",
doi = "10.1016/j.prostr.2022.12.189"
}

Zečević, B., Maksimović, A., Milović, L., Aleksić, V., Grbović, A.,& Bulatović, S.. (2022). Numerical simulation of 14Mov6-3 steel CT-specimen Fracture Behavior. in 23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity
Elsevier B.V.., 42.
https://doi.org/10.1016/j.prostr.2022.12.189

Zečević B, Maksimović A, Milović L, Aleksić V, Grbović A, Bulatović S. Numerical simulation of 14Mov6-3 steel CT-specimen Fracture Behavior. in 23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity. 2022;42.
doi:10.1016/j.prostr.2022.12.189 .

Zečević, Bojana, Maksimović, Ana, Milović, Ljubica, Aleksić, Vujadin, Grbović, Aleksandar, Bulatović, Srđan, "Numerical simulation of 14Mov6-3 steel CT-specimen Fracture Behavior" in 23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity, 42 (2022),
https://doi.org/10.1016/j.prostr.2022.12.189 . .

TY  - CONF
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Bulatović, Srđan
AU  - Zečević, Bojana
AU  - Maksimović, Ana
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/416
AB  - The behavior of steel in low-cycle fatigue (LCF) is tested experimentally, in accordance with ISO 12106:2017 (E) and/or ASTM E 606-04. For this purpose, smooth specimens which are exposed to low-cycle fatigue at several levels of regulated strains and/or loads at room, elevated or reduced temperatures are used. Stress–strain response at LCF has the shape of an ideal hysteresis loop. The strain range Δε corresponds to overall loop width, while the stress range Δσ corresponds to its overall height. The paper presents a method for determining the intersection of the idealized hysteresis loop and the positive part of the strain axis in order to determine the values of elastic, Δεe/2, and plastic, Δεp/2, components of the strain amplitude to characterize the behavior of steel under low cyclic fatigue. The values of elastic and plastic components of the strain amplitude are needed to determine the characteristic curves of low-cycle fatigue, which describe the behavior of steel under the loading of low-cycle fatigue.
PB  - Springer Science and Business Media B.V.
C3  - Mechanisms and Machine Science
T1  - Determination of LCF Plastic and Elastic Strain Components of Steel
EP  - 349
SP  - 341
VL  - 109
DO  - 10.1007/978-3-030-88465-9_32
ER  - 

@conference{
author = "Aleksić, Vujadin and Milović, Ljubica and Bulatović, Srđan and Zečević, Bojana and Maksimović, Ana",
year = "2022",
abstract = "The behavior of steel in low-cycle fatigue (LCF) is tested experimentally, in accordance with ISO 12106:2017 (E) and/or ASTM E 606-04. For this purpose, smooth specimens which are exposed to low-cycle fatigue at several levels of regulated strains and/or loads at room, elevated or reduced temperatures are used. Stress–strain response at LCF has the shape of an ideal hysteresis loop. The strain range Δε corresponds to overall loop width, while the stress range Δσ corresponds to its overall height. The paper presents a method for determining the intersection of the idealized hysteresis loop and the positive part of the strain axis in order to determine the values of elastic, Δεe/2, and plastic, Δεp/2, components of the strain amplitude to characterize the behavior of steel under low cyclic fatigue. The values of elastic and plastic components of the strain amplitude are needed to determine the characteristic curves of low-cycle fatigue, which describe the behavior of steel under the loading of low-cycle fatigue.",
publisher = "Springer Science and Business Media B.V.",
journal = "Mechanisms and Machine Science",
title = "Determination of LCF Plastic and Elastic Strain Components of Steel",
pages = "349-341",
volume = "109",
doi = "10.1007/978-3-030-88465-9_32"
}

Aleksić, V., Milović, L., Bulatović, S., Zečević, B.,& Maksimović, A.. (2022). Determination of LCF Plastic and Elastic Strain Components of Steel. in Mechanisms and Machine Science
Springer Science and Business Media B.V.., 109, 341-349.
https://doi.org/10.1007/978-3-030-88465-9_32

Aleksić V, Milović L, Bulatović S, Zečević B, Maksimović A. Determination of LCF Plastic and Elastic Strain Components of Steel. in Mechanisms and Machine Science. 2022;109:341-349.
doi:10.1007/978-3-030-88465-9_32 .

Aleksić, Vujadin, Milović, Ljubica, Bulatović, Srđan, Zečević, Bojana, Maksimović, Ana, "Determination of LCF Plastic and Elastic Strain Components of Steel" in Mechanisms and Machine Science, 109 (2022):341-349,
https://doi.org/10.1007/978-3-030-88465-9_32 . .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Zečević, Bojana
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/415
AB  - The most important characteristics for service safety of welded joints are those describing crack initiation and growth caused by variable loading. Crack initiation and growth caused by variable loading is the subject of numerous investigations. This paper shows the determination of parameters of the fatigue crack for constituents of welded joints produced of high strength low alloyed steel. The crack growth law of Paris establishes the relation between the applied variable load quantity or the corresponding stress intensity factor range and crack growth per cycle. Results have shown that the position of the notch and crack initiation affect the values of the stress intensity range of fatigue threshold Delta Kth and parameters in the Paris' equation.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - Application of Paris' Law Under Variable Loading
EP  - 78
IS  - 1
SP  - 72
VL  - 50
DO  - 10.5937/fme2201072B
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Milović, Ljubica and Zečević, Bojana",
year = "2022",
abstract = "The most important characteristics for service safety of welded joints are those describing crack initiation and growth caused by variable loading. Crack initiation and growth caused by variable loading is the subject of numerous investigations. This paper shows the determination of parameters of the fatigue crack for constituents of welded joints produced of high strength low alloyed steel. The crack growth law of Paris establishes the relation between the applied variable load quantity or the corresponding stress intensity factor range and crack growth per cycle. Results have shown that the position of the notch and crack initiation affect the values of the stress intensity range of fatigue threshold Delta Kth and parameters in the Paris' equation.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "Application of Paris' Law Under Variable Loading",
pages = "78-72",
number = "1",
volume = "50",
doi = "10.5937/fme2201072B"
}

Bulatović, S., Aleksić, V., Milović, L.,& Zečević, B.. (2022). Application of Paris' Law Under Variable Loading. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 50(1), 72-78.
https://doi.org/10.5937/fme2201072B

Bulatović S, Aleksić V, Milović L, Zečević B. Application of Paris' Law Under Variable Loading. in FME Transactions. 2022;50(1):72-78.
doi:10.5937/fme2201072B .

Bulatović, Srđan, Aleksić, Vujadin, Milović, Ljubica, Zečević, Bojana, "Application of Paris' Law Under Variable Loading" in FME Transactions, 50, no. 1 (2022):72-78,
https://doi.org/10.5937/fme2201072B . .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Zečević, Bojana
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/662
AB  - In many production processes, as well as in the exploitation of machine components and structures, materials are exposed to
impact loads. In structures made of welded joints of high strength low-alloy steels with their constituents (parent metal, weld
metal and heat-affected-zone), the toughness test determines the tendency of steel to brittle fracture, respectively the tendency
to increase brittleness during exploitation.
The strain rate is high and the material manifests much more brittle behavior than is shown by tensile testing. Toughness as
a mechanical property is an important factor that is defined as the energy that needs to be spent in order to achieve fracture.
Parameters obtained by testing the properties of plasticity are the basis for the design of structures in order to achieve
strengths under applied load.
The test results of high strength low-alloy steel toughness assessment at different test temperatures show that temperature
significantly affects the impact toughness of steels and their alloys. At higher temperatures the impact energy on fracture is
high (the material shows the properties of plasticity) while at lower temperatures the impact energy is small (the material is
brittle).
T2  - Advanced Technologies & Materials
T1  - High strength low-alloy steels impact toughness assessment at different test temperatures
EP  - 46
IS  - 2
SP  - 43
VL  - 46
DO  - 10.24867/ATM-2021-2-007
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Milović, Ljubica and Zečević, Bojana",
year = "2021",
abstract = "In many production processes, as well as in the exploitation of machine components and structures, materials are exposed to
impact loads. In structures made of welded joints of high strength low-alloy steels with their constituents (parent metal, weld
metal and heat-affected-zone), the toughness test determines the tendency of steel to brittle fracture, respectively the tendency
to increase brittleness during exploitation.
The strain rate is high and the material manifests much more brittle behavior than is shown by tensile testing. Toughness as
a mechanical property is an important factor that is defined as the energy that needs to be spent in order to achieve fracture.
Parameters obtained by testing the properties of plasticity are the basis for the design of structures in order to achieve
strengths under applied load.
The test results of high strength low-alloy steel toughness assessment at different test temperatures show that temperature
significantly affects the impact toughness of steels and their alloys. At higher temperatures the impact energy on fracture is
high (the material shows the properties of plasticity) while at lower temperatures the impact energy is small (the material is
brittle).",
journal = "Advanced Technologies & Materials",
title = "High strength low-alloy steels impact toughness assessment at different test temperatures",
pages = "46-43",
number = "2",
volume = "46",
doi = "10.24867/ATM-2021-2-007"
}

Bulatović, S., Aleksić, V., Milović, L.,& Zečević, B.. (2021). High strength low-alloy steels impact toughness assessment at different test temperatures. in Advanced Technologies & Materials, 46(2), 43-46.
https://doi.org/10.24867/ATM-2021-2-007

Bulatović S, Aleksić V, Milović L, Zečević B. High strength low-alloy steels impact toughness assessment at different test temperatures. in Advanced Technologies & Materials. 2021;46(2):43-46.
doi:10.24867/ATM-2021-2-007 .

Bulatović, Srđan, Aleksić, Vujadin, Milović, Ljubica, Zečević, Bojana, "High strength low-alloy steels impact toughness assessment at different test temperatures" in Advanced Technologies & Materials, 46, no. 2 (2021):43-46,
https://doi.org/10.24867/ATM-2021-2-007 . .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Zečević, Bojana
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/409
AB  - The cycle loading of a material results in the modification of its properties and so in this paper is presented the behaviour of the fatigue life using low-cycle fatigue parameters. By applying the Coffin-Manson equation in fatigue loading of the tested specimens, the crack initiation has been computed. The stabilized hysteresis loop is a characteristic of all hystereses and it is used to determine all of the parameters for the low cycle fatigue (LCF) assessment. The experimental results have given us important information on the understanding of fatigue behaviour of high strength low-alloyed steel (HSLA) and its welded joints.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Determination of the Coffin-Manson equation under low-cycle fatigue conditions
EP  - 228
IS  - 3
SP  - 225
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4787
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Milović, Ljubica and Zečević, Bojana",
year = "2021",
abstract = "The cycle loading of a material results in the modification of its properties and so in this paper is presented the behaviour of the fatigue life using low-cycle fatigue parameters. By applying the Coffin-Manson equation in fatigue loading of the tested specimens, the crack initiation has been computed. The stabilized hysteresis loop is a characteristic of all hystereses and it is used to determine all of the parameters for the low cycle fatigue (LCF) assessment. The experimental results have given us important information on the understanding of fatigue behaviour of high strength low-alloyed steel (HSLA) and its welded joints.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Determination of the Coffin-Manson equation under low-cycle fatigue conditions",
pages = "228-225",
number = "3",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4787"
}

Bulatović, S., Aleksić, V., Milović, L.,& Zečević, B.. (2021). Determination of the Coffin-Manson equation under low-cycle fatigue conditions. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 21(3), 225-228.
https://hdl.handle.net/21.15107/rcub_technorep_4787

Bulatović S, Aleksić V, Milović L, Zečević B. Determination of the Coffin-Manson equation under low-cycle fatigue conditions. in Structural Integrity and Life. 2021;21(3):225-228.
https://hdl.handle.net/21.15107/rcub_technorep_4787 .

Bulatović, Srđan, Aleksić, Vujadin, Milović, Ljubica, Zečević, Bojana, "Determination of the Coffin-Manson equation under low-cycle fatigue conditions" in Structural Integrity and Life, 21, no. 3 (2021):225-228,
https://hdl.handle.net/21.15107/rcub_technorep_4787 .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Zečević, Bojana
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/402
AB  - Brittle damages have been examined widely since welding became common practice when it comes to carrying out robust structures. Welded structure of the ship hull has to be continuous. Brittle damages that occur on hull structures have always been examined thoroughly. Cracks are most commonly initiated at locations where stress concentrators exist. These concentrators can originate due to flaws that occur during the design phase or due to mistakes that occur during the assembly of the structure. When it comes to failures and damages that occur at ship structures, it has been noticed that damages due to brittleness practically always happen at low temperatures. Impact test analysis is significant due to the fact that it replicates the ductile to brittle transition of steel in practically identical range of temperatures for all ship structures. Impact of ductile-brittle transition temperature is an important factor especially because there have been many ship failures and damages in history. In ship structures made of welded joints of high strength low-alloy (HSLA) steels with their segments (parent metal, weld metal and heat-affected- zone), the toughness test determines the tendency of steel to brittle fracture, respectively the tendency to increase brittleness during exploitation. Parameters obtained by testing the properties of plasticity are the fundamental for the composition of ship structures with the aim of realize strengths under tested load. The test results of high strength low-alloy steel toughness assessment at different test temperatures show that temperature significantly affects the impact toughness of steels and their alloys.
PB  - Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb
T2  - Brodogradnja
T1  - An analysis of impact testing of high strength low-alloy steels used in ship construction
EP  - 12
IS  - 3
SP  - 1
VL  - 72
DO  - 10.21278/brod72301
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Milović, Ljubica and Zečević, Bojana",
year = "2021",
abstract = "Brittle damages have been examined widely since welding became common practice when it comes to carrying out robust structures. Welded structure of the ship hull has to be continuous. Brittle damages that occur on hull structures have always been examined thoroughly. Cracks are most commonly initiated at locations where stress concentrators exist. These concentrators can originate due to flaws that occur during the design phase or due to mistakes that occur during the assembly of the structure. When it comes to failures and damages that occur at ship structures, it has been noticed that damages due to brittleness practically always happen at low temperatures. Impact test analysis is significant due to the fact that it replicates the ductile to brittle transition of steel in practically identical range of temperatures for all ship structures. Impact of ductile-brittle transition temperature is an important factor especially because there have been many ship failures and damages in history. In ship structures made of welded joints of high strength low-alloy (HSLA) steels with their segments (parent metal, weld metal and heat-affected- zone), the toughness test determines the tendency of steel to brittle fracture, respectively the tendency to increase brittleness during exploitation. Parameters obtained by testing the properties of plasticity are the fundamental for the composition of ship structures with the aim of realize strengths under tested load. The test results of high strength low-alloy steel toughness assessment at different test temperatures show that temperature significantly affects the impact toughness of steels and their alloys.",
publisher = "Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb",
journal = "Brodogradnja",
title = "An analysis of impact testing of high strength low-alloy steels used in ship construction",
pages = "12-1",
number = "3",
volume = "72",
doi = "10.21278/brod72301"
}

Bulatović, S., Aleksić, V., Milović, L.,& Zečević, B.. (2021). An analysis of impact testing of high strength low-alloy steels used in ship construction. in Brodogradnja
Univ Zagreb Fac Mechanical Engineering & Naval Architecture, Zagreb., 72(3), 1-12.
https://doi.org/10.21278/brod72301

Bulatović S, Aleksić V, Milović L, Zečević B. An analysis of impact testing of high strength low-alloy steels used in ship construction. in Brodogradnja. 2021;72(3):1-12.
doi:10.21278/brod72301 .

Bulatović, Srđan, Aleksić, Vujadin, Milović, Ljubica, Zečević, Bojana, "An analysis of impact testing of high strength low-alloy steels used in ship construction" in Brodogradnja, 72, no. 3 (2021):1-12,
https://doi.org/10.21278/brod72301 . .

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 . .

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 .

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 . .

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 .

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 .

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
PY  - 2013
UR  - http://rims.institutims.rs/handle/123456789/216
AB  - This paper examines leakage and damages of steam and provides an overview of NDT testing in order to determine the cause of steam lines failure in power plants and heating plants. This approach may be applied to similar structures and its application in preventive maintenance would help extend the life of steam pipes.
PB  - Gruppo Italiano Frattura
T2  - Frattura ed Integrita Strutturale
T1  - Failure of steam line causes determined by NDT testing in power and heating plants
EP  - 48
SP  - 41
VL  - 26
DO  - 10.3221/IGF-ESIS.26.05
ER  - 

@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Milović, Ljubica",
year = "2013",
abstract = "This paper examines leakage and damages of steam and provides an overview of NDT testing in order to determine the cause of steam lines failure in power plants and heating plants. This approach may be applied to similar structures and its application in preventive maintenance would help extend the life of steam pipes.",
publisher = "Gruppo Italiano Frattura",
journal = "Frattura ed Integrita Strutturale",
title = "Failure of steam line causes determined by NDT testing in power and heating plants",
pages = "48-41",
volume = "26",
doi = "10.3221/IGF-ESIS.26.05"
}

Bulatović, S., Aleksić, V.,& Milović, L.. (2013). Failure of steam line causes determined by NDT testing in power and heating plants. in Frattura ed Integrita Strutturale
Gruppo Italiano Frattura., 26, 41-48.
https://doi.org/10.3221/IGF-ESIS.26.05

Bulatović S, Aleksić V, Milović L. Failure of steam line causes determined by NDT testing in power and heating plants. in Frattura ed Integrita Strutturale. 2013;26:41-48.
doi:10.3221/IGF-ESIS.26.05 .

Bulatović, Srđan, Aleksić, Vujadin, Milović, Ljubica, "Failure of steam line causes determined by NDT testing in power and heating plants" in Frattura ed Integrita Strutturale, 26 (2013):41-48,
https://doi.org/10.3221/IGF-ESIS.26.05 . .

TY  - JOUR
AU  - Milović, Ljubica
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Radaković, Zoran
AU  - Marković, Svetislav
AU  - Sedmak, Stojan
PY  - 2012
UR  - http://rims.institutims.rs/handle/123456789/183
AB  - U zavarenim spojevima, sa gledišta mehanike loma, se pretpostavlja prisustvo prslina, gde se onda vek s obzirom na zamor takvih konstrukcija sa prslinama procenjuje vremenom rasta prsline pod promenljivim opterećenjem. Eksperimentalni podaci dobijeni ispitivanjem pružaju značajnu osnovu za bolje razumevanje i objašnjenje fenomena zamora materijala. Niskociklični zamor (LCF) se javlja u procesu punjenja i pražnjenja reaktora, posuda pod pritiskom i cevovoda; proces zamora može ubrzati dodatni negativan efekat promene temperature i efekat agresivne sredine sadržane u posudi, kao i tokom perioda eksploatacije opreme u procesnoj industriji. U ovom radu prikazani su rezultati merenja J integrala pri niskocikličnom zamoru (LCF) metala šava niskolegiranog čelika povišene čvrstoće (HSLA), koji se koristi u proizvodnji posuda pod pritiskom postupkom zavarivanja pod praškom.
AB  - From a fracture mechanics point of view on welded joints, it is assumed that the welded joint is pre-cracked such as that the fatigue life of the pre-cracked structure is then determined by the period of crack growth under variable load. Experimental data obtained by testing provide a substantial basis for a better understanding and an explanation of the phenomenon of material fatigue. Low cycle fatigue (LCF) occurs during the process of charging and discharging of reactors, pressure vessels and pipelines; the fatigue can be accelerated by an additional negative effect of temperature variation and the aggressive effect of the media contained inside the vessel, and during the exploitation of the equipment in the processing industry. In the present paper the results are presented of J-integral measurements at LCF of a low-alloyed high strength steel (HSLA) weld metal used in the submerged arc welding process in the manufacture of pressure vessels.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Integritet i vek konstrukcija
T1  - Procena ponašanja zavarenog spoja HSLA čelika opterećenog na zamor primenom parametara mehanike loma
T1  - Assessment of the behaviour of fatigue loaded HSLA steel welded joint by applying fracture mechanics parameters
EP  - 179
IS  - 3
SP  - 175
VL  - 12
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2050
ER  - 

@article{
author = "Milović, Ljubica and Bulatović, Srđan and Aleksić, Vujadin and Radaković, Zoran and Marković, Svetislav and Sedmak, Stojan",
year = "2012",
abstract = "U zavarenim spojevima, sa gledišta mehanike loma, se pretpostavlja prisustvo prslina, gde se onda vek s obzirom na zamor takvih konstrukcija sa prslinama procenjuje vremenom rasta prsline pod promenljivim opterećenjem. Eksperimentalni podaci dobijeni ispitivanjem pružaju značajnu osnovu za bolje razumevanje i objašnjenje fenomena zamora materijala. Niskociklični zamor (LCF) se javlja u procesu punjenja i pražnjenja reaktora, posuda pod pritiskom i cevovoda; proces zamora može ubrzati dodatni negativan efekat promene temperature i efekat agresivne sredine sadržane u posudi, kao i tokom perioda eksploatacije opreme u procesnoj industriji. U ovom radu prikazani su rezultati merenja J integrala pri niskocikličnom zamoru (LCF) metala šava niskolegiranog čelika povišene čvrstoće (HSLA), koji se koristi u proizvodnji posuda pod pritiskom postupkom zavarivanja pod praškom., From a fracture mechanics point of view on welded joints, it is assumed that the welded joint is pre-cracked such as that the fatigue life of the pre-cracked structure is then determined by the period of crack growth under variable load. Experimental data obtained by testing provide a substantial basis for a better understanding and an explanation of the phenomenon of material fatigue. Low cycle fatigue (LCF) occurs during the process of charging and discharging of reactors, pressure vessels and pipelines; the fatigue can be accelerated by an additional negative effect of temperature variation and the aggressive effect of the media contained inside the vessel, and during the exploitation of the equipment in the processing industry. In the present paper the results are presented of J-integral measurements at LCF of a low-alloyed high strength steel (HSLA) weld metal used in the submerged arc welding process in the manufacture of pressure vessels.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Integritet i vek konstrukcija",
title = "Procena ponašanja zavarenog spoja HSLA čelika opterećenog na zamor primenom parametara mehanike loma, Assessment of the behaviour of fatigue loaded HSLA steel welded joint by applying fracture mechanics parameters",
pages = "179-175",
number = "3",
volume = "12",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2050"
}

Milović, L., Bulatović, S., Aleksić, V., Radaković, Z., Marković, S.,& Sedmak, S.. (2012). Procena ponašanja zavarenog spoja HSLA čelika opterećenog na zamor primenom parametara mehanike loma. in Integritet i vek konstrukcija
Institut za ispitivanje materijala, Beograd., 12(3), 175-179.
https://hdl.handle.net/21.15107/rcub_technorep_2050

Milović L, Bulatović S, Aleksić V, Radaković Z, Marković S, Sedmak S. Procena ponašanja zavarenog spoja HSLA čelika opterećenog na zamor primenom parametara mehanike loma. in Integritet i vek konstrukcija. 2012;12(3):175-179.
https://hdl.handle.net/21.15107/rcub_technorep_2050 .

Milović, Ljubica, Bulatović, Srđan, Aleksić, Vujadin, Radaković, Zoran, Marković, Svetislav, Sedmak, Stojan, "Procena ponašanja zavarenog spoja HSLA čelika opterećenog na zamor primenom parametara mehanike loma" in Integritet i vek konstrukcija, 12, no. 3 (2012):175-179,
https://hdl.handle.net/21.15107/rcub_technorep_2050 .

TY  - JOUR
AU  - Buyukyildirim, G.
AU  - Sedmak, Aleksandar
AU  - Prokić-Cvetković, Radica
AU  - Popović, Olivera
AU  - Jovicić, R.
AU  - Bulatović, Srđan
PY  - 2011
UR  - http://rims.institutims.rs/handle/123456789/144
AB  - The effect of MIG/MAG shielding gas on the toughness of aluminium alloy AlMg4.5Mn weld metal has been analysed using the instrumented Charpy pendulum for standard toughness testing. The MIG/MAG welding was performed in the shielded atmosphere of Ar, as well as the mixtures of gases Ar + 0.0307 % O 2, Ar + 30 % He + 0.0317 %O 2 and Ar + 48 % He + 0.0290 % O 2. Metallographic tests have been performed in order to check the appearance and porosity of the weld metal, as well as its toughness testing at different temperatures (20, - 90, - 196 °C), using the instrumental Charpy pendulum, in order to separate the crack initiation and crack growth energy. In this way, a comprehensive insight of the effect of shielding gas on the weld metal toughness has been obtained.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW
EP  - 132
IS  - 3
SP  - 127
VL  - 39
UR  - https://hdl.handle.net/21.15107/rcub_rims_144
ER  - 

@article{
author = "Buyukyildirim, G. and Sedmak, Aleksandar and Prokić-Cvetković, Radica and Popović, Olivera and Jovicić, R. and Bulatović, Srđan",
year = "2011",
abstract = "The effect of MIG/MAG shielding gas on the toughness of aluminium alloy AlMg4.5Mn weld metal has been analysed using the instrumented Charpy pendulum for standard toughness testing. The MIG/MAG welding was performed in the shielded atmosphere of Ar, as well as the mixtures of gases Ar + 0.0307 % O 2, Ar + 30 % He + 0.0317 %O 2 and Ar + 48 % He + 0.0290 % O 2. Metallographic tests have been performed in order to check the appearance and porosity of the weld metal, as well as its toughness testing at different temperatures (20, - 90, - 196 °C), using the instrumental Charpy pendulum, in order to separate the crack initiation and crack growth energy. In this way, a comprehensive insight of the effect of shielding gas on the weld metal toughness has been obtained.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW",
pages = "132-127",
number = "3",
volume = "39",
url = "https://hdl.handle.net/21.15107/rcub_rims_144"
}

Buyukyildirim, G., Sedmak, A., Prokić-Cvetković, R., Popović, O., Jovicić, R.,& Bulatović, S.. (2011). The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 39(3), 127-132.
https://hdl.handle.net/21.15107/rcub_rims_144

Buyukyildirim G, Sedmak A, Prokić-Cvetković R, Popović O, Jovicić R, Bulatović S. The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW. in FME Transactions. 2011;39(3):127-132.
https://hdl.handle.net/21.15107/rcub_rims_144 .

Buyukyildirim, G., Sedmak, Aleksandar, Prokić-Cvetković, Radica, Popović, Olivera, Jovicić, R., Bulatović, Srđan, "The effect of shielding gas on the toughness of ALMg4.5Mn weld metals made by GMAW" in FME Transactions, 39, no. 3 (2011):127-132,
https://hdl.handle.net/21.15107/rcub_rims_144 .

TY  - JOUR
AU  - Jovičić, R.
AU  - Sedmak, Aleksandar
AU  - Prokić-Cvetković, Radica
AU  - Bulatović, Srđan
AU  - Buyukyildirim, G.
PY  - 2011
UR  - http://rims.institutims.rs/handle/123456789/133
AB  - In this paper the AlMg4.5Mn TIG welded joints have been tested in order to investigate their cracking resistance. Testing plates, size of 500×250×12 mm, are welded by TIG procedure in a horizontal-vertical position. Various mixtures of inert gases are prepared and supplied by MESSER TEHNOGAS AD, Smederevo (Serbia), including Ar, Ar + 0.015% N 2 , Ar + 15% He + 0.015% N 2 , Ar + 30% He + 0.015% N 2 , Ar + 50% He + 0.015% N 2 . Nondestructive testing is used to check joint defects, primarily porosity, as typical for this type of alloys. The Charpy specimens, with the notch positioned in different regions of the welded joint, are tested using instrumented pendulum to separate crack initiation and growth energy. Crack resistance is evaluated by using static (KIc) and dynamic testing (Paris law - fatigue crack growth).
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Cracking resistance of AlMg4.5Mn alloy TIG welded joints
EP  - 208
IS  - 3
SP  - 205
VL  - 11
UR  - https://hdl.handle.net/21.15107/rcub_rims_133
ER  - 

@article{
author = "Jovičić, R. and Sedmak, Aleksandar and Prokić-Cvetković, Radica and Bulatović, Srđan and Buyukyildirim, G.",
year = "2011",
abstract = "In this paper the AlMg4.5Mn TIG welded joints have been tested in order to investigate their cracking resistance. Testing plates, size of 500×250×12 mm, are welded by TIG procedure in a horizontal-vertical position. Various mixtures of inert gases are prepared and supplied by MESSER TEHNOGAS AD, Smederevo (Serbia), including Ar, Ar + 0.015% N 2 , Ar + 15% He + 0.015% N 2 , Ar + 30% He + 0.015% N 2 , Ar + 50% He + 0.015% N 2 . Nondestructive testing is used to check joint defects, primarily porosity, as typical for this type of alloys. The Charpy specimens, with the notch positioned in different regions of the welded joint, are tested using instrumented pendulum to separate crack initiation and growth energy. Crack resistance is evaluated by using static (KIc) and dynamic testing (Paris law - fatigue crack growth).",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Cracking resistance of AlMg4.5Mn alloy TIG welded joints",
pages = "208-205",
number = "3",
volume = "11",
url = "https://hdl.handle.net/21.15107/rcub_rims_133"
}

Jovičić, R., Sedmak, A., Prokić-Cvetković, R., Bulatović, S.,& Buyukyildirim, G.. (2011). Cracking resistance of AlMg4.5Mn alloy TIG welded joints. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 11(3), 205-208.
https://hdl.handle.net/21.15107/rcub_rims_133

Jovičić R, Sedmak A, Prokić-Cvetković R, Bulatović S, Buyukyildirim G. Cracking resistance of AlMg4.5Mn alloy TIG welded joints. in Structural Integrity and Life. 2011;11(3):205-208.
https://hdl.handle.net/21.15107/rcub_rims_133 .

Jovičić, R., Sedmak, Aleksandar, Prokić-Cvetković, Radica, Bulatović, Srđan, Buyukyildirim, G., "Cracking resistance of AlMg4.5Mn alloy TIG welded joints" in Structural Integrity and Life, 11, no. 3 (2011):205-208,
https://hdl.handle.net/21.15107/rcub_rims_133 .