Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200213 (Innovation Center of the Faculty of Mechanical Engineering)

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Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200213 (Innovation Center of the Faculty of Mechanical Engineering) (en)
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, Ugovor br. 200213 (Inovacioni centar Mašinskog fakulteta u Beogradu doo) (sr_RS)
Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 200213 (Иновациони центар Машинског факултета у Београду доо) (sr)
Authors

Publications

Developing thermal insulation cement-based mortars with recycled aggregate in accordance with net zero principles

Pavlović, Marko; Terzić, Anja; Dojčinović, Marina; Radulović, Dragan

(Association for ETRAN Society, 2024)

TY  - JOUR
AU  - Pavlović, Marko
AU  - Terzić, Anja
AU  - Dojčinović, Marina
AU  - Radulović, Dragan
PY  - 2024
UR  - http://rims.institutims.rs/handle/123456789/817
AB  - The performance of thermo-insulation rendering mortars with alternations in ratios of powdered cordierite and talc was examined. The goal was to confirm that recycled kilnware cordierite can be reapplied in the mortar design without significant deterioration in performance in comparison with OPC mortar. Differential thermal analysis was employed for examining thermally induced reactions. The cavitation erosion, in testing sequences ranging from 30 to 120 minutes, was used to assess the compactness of the mortar structure. The physico-mechanical properties of experimental mortars were investigated. The morphologies of the mortar tablets upon cavitation were studied using a scanning electron microscope. It was established that cordierite and talc filler in amounts up to 20% enhance microstructural packing and mechanical strengths due to improved cementation and therefore contribute to cavitation erosion resistance. Higher amounts of talc cause structural degradation and mass loss during cavitation tests. Reducing manufacturing costs, energy consumption, and greenhouse gas emissions are the main objectives of the production of this waste-based construction composite, as the reuse of waste materials can help achieve a number of Sustainable Development Goals.
PB  - Association for ETRAN Society
T2  - Science of Sintering OnLine-First Issue 00
T1  - Developing thermal insulation cement-based mortars with recycled aggregate in accordance with net zero principles
DO  - 10.2298/SOS231215002P
ER  - 
@article{
author = "Pavlović, Marko and Terzić, Anja and Dojčinović, Marina and Radulović, Dragan",
year = "2024",
abstract = "The performance of thermo-insulation rendering mortars with alternations in ratios of powdered cordierite and talc was examined. The goal was to confirm that recycled kilnware cordierite can be reapplied in the mortar design without significant deterioration in performance in comparison with OPC mortar. Differential thermal analysis was employed for examining thermally induced reactions. The cavitation erosion, in testing sequences ranging from 30 to 120 minutes, was used to assess the compactness of the mortar structure. The physico-mechanical properties of experimental mortars were investigated. The morphologies of the mortar tablets upon cavitation were studied using a scanning electron microscope. It was established that cordierite and talc filler in amounts up to 20% enhance microstructural packing and mechanical strengths due to improved cementation and therefore contribute to cavitation erosion resistance. Higher amounts of talc cause structural degradation and mass loss during cavitation tests. Reducing manufacturing costs, energy consumption, and greenhouse gas emissions are the main objectives of the production of this waste-based construction composite, as the reuse of waste materials can help achieve a number of Sustainable Development Goals.",
publisher = "Association for ETRAN Society",
journal = "Science of Sintering OnLine-First Issue 00",
title = "Developing thermal insulation cement-based mortars with recycled aggregate in accordance with net zero principles",
doi = "10.2298/SOS231215002P"
}
Pavlović, M., Terzić, A., Dojčinović, M.,& Radulović, D.. (2024). Developing thermal insulation cement-based mortars with recycled aggregate in accordance with net zero principles. in Science of Sintering OnLine-First Issue 00
Association for ETRAN Society..
https://doi.org/10.2298/SOS231215002P
Pavlović M, Terzić A, Dojčinović M, Radulović D. Developing thermal insulation cement-based mortars with recycled aggregate in accordance with net zero principles. in Science of Sintering OnLine-First Issue 00. 2024;.
doi:10.2298/SOS231215002P .
Pavlović, Marko, Terzić, Anja, Dojčinović, Marina, Radulović, Dragan, "Developing thermal insulation cement-based mortars with recycled aggregate in accordance with net zero principles" in Science of Sintering OnLine-First Issue 00 (2024),
https://doi.org/10.2298/SOS231215002P . .

The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response

Folić, Boris; Čokić, Miloš; Ćosić, Mladen; Sedmak, Simon; Žugić, Željko

(University of Belgrade - Faculty of Mechanical Engineering, 2023)

TY  - CONF
AU  - Folić, Boris
AU  - Čokić, Miloš
AU  - Ćosić, Mladen
AU  - Sedmak, Simon
AU  - Žugić, Željko
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/617
AB  - During earthquakes that exceed the designed level of the structure, the structure gets damaged. Here, the structure-foundation-soil is considered as a system, and the effect of the soil on the piles can be replaced by nonlinear p-y curves. Work on this topic began as early as 1957, based on the analogy between the triaxial test and the form of soil failure, and during the 1970’s, a number of researchers made significant progress in the development of appropriate models for different types of soil. Eurocode 8 pays special attention to the selection of earthquakes as a set of accelerograms. For areas within a radius of several hundred kilometers from central Romania and its southern part, the Vrancea hypocenter has a significant influence. In North Serbia and its surroundings, other sources of earthquakes are also possible, but when choosing accelerogram, the response spectra of several Vrancea records should also be used. The SSI model itself, where the soil is replaced by p-y curves, even though it might look complicated, it is significantly simpler and leads to faster results than integral 3D models. By using adequate soil parameters, fairly reliable data can be obtained on the degree and distribution of damage to the SSI system, like plastic hinges. In soil models used for clean sand, the curves used seem significantly more reliable than clayey ones, but here too caution is needed because the degree of compaction (relative density) has a significant effect, and the way of determining it is still not reliable.
PB  - University of Belgrade - Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings
T1  - The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response
SP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_rims_617
ER  - 
@conference{
author = "Folić, Boris and Čokić, Miloš and Ćosić, Mladen and Sedmak, Simon and Žugić, Željko",
year = "2023",
abstract = "During earthquakes that exceed the designed level of the structure, the structure gets damaged. Here, the structure-foundation-soil is considered as a system, and the effect of the soil on the piles can be replaced by nonlinear p-y curves. Work on this topic began as early as 1957, based on the analogy between the triaxial test and the form of soil failure, and during the 1970’s, a number of researchers made significant progress in the development of appropriate models for different types of soil. Eurocode 8 pays special attention to the selection of earthquakes as a set of accelerograms. For areas within a radius of several hundred kilometers from central Romania and its southern part, the Vrancea hypocenter has a significant influence. In North Serbia and its surroundings, other sources of earthquakes are also possible, but when choosing accelerogram, the response spectra of several Vrancea records should also be used. The SSI model itself, where the soil is replaced by p-y curves, even though it might look complicated, it is significantly simpler and leads to faster results than integral 3D models. By using adequate soil parameters, fairly reliable data can be obtained on the degree and distribution of damage to the SSI system, like plastic hinges. In soil models used for clean sand, the curves used seem significantly more reliable than clayey ones, but here too caution is needed because the degree of compaction (relative density) has a significant effect, and the way of determining it is still not reliable.",
publisher = "University of Belgrade - Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings",
title = "The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response",
pages = "9",
url = "https://hdl.handle.net/21.15107/rcub_rims_617"
}
Folić, B., Čokić, M., Ćosić, M., Sedmak, S.,& Žugić, Ž.. (2023). The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response. in International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings
University of Belgrade - Faculty of Mechanical Engineering., 9.
https://hdl.handle.net/21.15107/rcub_rims_617
Folić B, Čokić M, Ćosić M, Sedmak S, Žugić Ž. The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response. in International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings. 2023;:9.
https://hdl.handle.net/21.15107/rcub_rims_617 .
Folić, Boris, Čokić, Miloš, Ćosić, Mladen, Sedmak, Simon, Žugić, Željko, "The Influence of Parameters of Sand Soil on States PH 2D Frame on Seismic Response" in International Conference of Experimental and Numerical Investigations and New Technologies, Zlatibor, Serbia-Proceedings (2023):9,
https://hdl.handle.net/21.15107/rcub_rims_617 .

Damage occurrence in welded structures of the bucket-wheel boom

Arsić, Miodrag; Flajs, Željko; Sedmak, Aleksandar; Veg, Emil; Sedmak, Simon

(Trans Tech Publications Ltd, Switzerland, 2022)

TY  - JOUR
AU  - Arsić, Miodrag
AU  - Flajs, Željko
AU  - Sedmak, Aleksandar
AU  - Veg, Emil
AU  - Sedmak, Simon
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/665
AB  - Causes of damage occurrence in vital components of welded structures of the bucket-wheel
excavator boom (DU1) at the coal landfill of the thermal power plant 'Nikola Tesla A' in Obrenovac
(Serbia) are investigated. Bucket-wheel excavator was produced by French company 'Ameco' and it
moves along the circular track. Taking into account lack of technical documentation, all tests and
were carried out under the assumption that welded structures were made of structural steels S355 and
S235. Investigation of causes of damage occurrence are based on results of non-destructive tests
(NDT) and tensometric measurements.
PB  - Trans Tech Publications Ltd, Switzerland
T2  - Engineering Innovations
T1  - Damage occurrence in welded structures of the bucket-wheel boom
EP  - 48
SP  - 41
VL  - 2
DO  - 10.4028/p-15iqnw
ER  - 
@article{
author = "Arsić, Miodrag and Flajs, Željko and Sedmak, Aleksandar and Veg, Emil and Sedmak, Simon",
year = "2022",
abstract = "Causes of damage occurrence in vital components of welded structures of the bucket-wheel
excavator boom (DU1) at the coal landfill of the thermal power plant 'Nikola Tesla A' in Obrenovac
(Serbia) are investigated. Bucket-wheel excavator was produced by French company 'Ameco' and it
moves along the circular track. Taking into account lack of technical documentation, all tests and
were carried out under the assumption that welded structures were made of structural steels S355 and
S235. Investigation of causes of damage occurrence are based on results of non-destructive tests
(NDT) and tensometric measurements.",
publisher = "Trans Tech Publications Ltd, Switzerland",
journal = "Engineering Innovations",
title = "Damage occurrence in welded structures of the bucket-wheel boom",
pages = "48-41",
volume = "2",
doi = "10.4028/p-15iqnw"
}
Arsić, M., Flajs, Ž., Sedmak, A., Veg, E.,& Sedmak, S.. (2022). Damage occurrence in welded structures of the bucket-wheel boom. in Engineering Innovations
Trans Tech Publications Ltd, Switzerland., 2, 41-48.
https://doi.org/10.4028/p-15iqnw
Arsić M, Flajs Ž, Sedmak A, Veg E, Sedmak S. Damage occurrence in welded structures of the bucket-wheel boom. in Engineering Innovations. 2022;2:41-48.
doi:10.4028/p-15iqnw .
Arsić, Miodrag, Flajs, Željko, Sedmak, Aleksandar, Veg, Emil, Sedmak, Simon, "Damage occurrence in welded structures of the bucket-wheel boom" in Engineering Innovations, 2 (2022):41-48,
https://doi.org/10.4028/p-15iqnw . .

Structural integrity assessment of welded bucket-wheel boom

Arsić, Miodrag; Flajs, Željko; Sedmak, Aleksandar; Veg, Emil; Sedmak, Simon

(Institut za ispitivanje materijala, Beograd, 2021)

TY  - JOUR
AU  - Arsić, Miodrag
AU  - Flajs, Željko
AU  - Sedmak, Aleksandar
AU  - Veg, Emil
AU  - Sedmak, Simon
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/411
AB  - Research is conducted on the causes of damage and the structural integrity assessment of the bucket-wheel boom welded lattice structures, before and after the repair of vital structures. Additionally, the paper describes the investigation conducted based on the results of non-destructive tests (visual-, magnetic particle-, dye penetrant-, and ultrasonic tests), results of tensometric measurements that refer to the stress-strain state, and results based on numerical calculation of stresses by finite element method, performed through the use of a 3D model in the software Radimpex Tower 6.0 (R). The results of tests and research performed after the repair of damaged structural welded sections show that the operational procedures are being obeyed.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Structural integrity assessment of welded bucket-wheel boom
EP  - 206
IS  - 2
SP  - 201
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_rims_411
ER  - 
@article{
author = "Arsić, Miodrag and Flajs, Željko and Sedmak, Aleksandar and Veg, Emil and Sedmak, Simon",
year = "2021",
abstract = "Research is conducted on the causes of damage and the structural integrity assessment of the bucket-wheel boom welded lattice structures, before and after the repair of vital structures. Additionally, the paper describes the investigation conducted based on the results of non-destructive tests (visual-, magnetic particle-, dye penetrant-, and ultrasonic tests), results of tensometric measurements that refer to the stress-strain state, and results based on numerical calculation of stresses by finite element method, performed through the use of a 3D model in the software Radimpex Tower 6.0 (R). The results of tests and research performed after the repair of damaged structural welded sections show that the operational procedures are being obeyed.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Structural integrity assessment of welded bucket-wheel boom",
pages = "206-201",
number = "2",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_rims_411"
}
Arsić, M., Flajs, Ž., Sedmak, A., Veg, E.,& Sedmak, S.. (2021). Structural integrity assessment of welded bucket-wheel boom. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 21(2), 201-206.
https://hdl.handle.net/21.15107/rcub_rims_411
Arsić M, Flajs Ž, Sedmak A, Veg E, Sedmak S. Structural integrity assessment of welded bucket-wheel boom. in Structural Integrity and Life. 2021;21(2):201-206.
https://hdl.handle.net/21.15107/rcub_rims_411 .
Arsić, Miodrag, Flajs, Željko, Sedmak, Aleksandar, Veg, Emil, Sedmak, Simon, "Structural integrity assessment of welded bucket-wheel boom" in Structural Integrity and Life, 21, no. 2 (2021):201-206,
https://hdl.handle.net/21.15107/rcub_rims_411 .