TY  - JOUR
AU  - Momčilović, Dejan B.
AU  - Hut, Nenad
AU  - Milović, Ljubica
AU  - Atanasovska, Ivana
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7496
AB  - Uprkos brojnim i skupim istraživanjima u oblasti zamora i loma kao i redovne kontrole gotovog proizvoda, prsline se javljaju svakodnevno u mnogim oblastima. Ovaj rad opisuje analizu otkaza spojnice lanca korišćene u konvejeru za transport cementa. Lančasti elevatori sa kašikom koriste spojnice za spajanje segmenata lanca i za vezivanje kašike za transport rasutog tereta. Površina kontakta između karike lanca i spojnice predstavlja jedno od najopterećenijih mesta na celom elevatoru. Tokom redovnog održavanja na upotrebljenim i novim spojnicama lanaca uočene su prsline u otvrdnutim termički obrađenim zonama. Radi povećanja otpornosti spojnica na habanje one se u oblasti kontakta sa karikom lanca termički obrađuju. Pojava prslina u novim nekorišćenim spojnicama pokrenula je ispitivanja sa ciljem da se utvrdi poreklo prslina na novim spojnicama. Pored ispitivanja uzroka nastanka ovih prslina u radu su navedeni predlozi mera za sprečavanje njihovog nastanka.
AB  - In spite of numerous and expensive research in the field of fatigue and fracture and regular control of end products, cracks occur every day in all fields of human activity. This paper describes failure analysis of chain brackets, used in conveyor systems for cement production. Chain type bucket elevators utilize chain brackets for joining segments of chain as well as for attaching brackets for bulk material transport. The contact zone between chain link and bracket is one of the most stressed in this elevator system. During regular maintenance, cracks are found on used and new brackets in the case hardened zone. Case hardening of the chain bracket is performed due to requirements for increased wear resistance of the chain link contact. The occurrence of cracks in new brackets raised the question regarding the origin of cracks and it is the main subject of this paper. This paper also suggests a solution for avoidance of cracks on chain brackets.
PB  - Integritet i vek konstrukcija, Beograd
T2  - Structural Integrity and Life
T1  - Analiza loma spojnice lanca
T1  - Failure analysis of chain bracket
EP  - 126
IS  - 2
SP  - 123
VL  - 11
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7496
ER  - 

@article{
author = "Momčilović, Dejan B. and Hut, Nenad and Milović, Ljubica and Atanasovska, Ivana",
abstract = "Uprkos brojnim i skupim istraživanjima u oblasti zamora i loma kao i redovne kontrole gotovog proizvoda, prsline se javljaju svakodnevno u mnogim oblastima. Ovaj rad opisuje analizu otkaza spojnice lanca korišćene u konvejeru za transport cementa. Lančasti elevatori sa kašikom koriste spojnice za spajanje segmenata lanca i za vezivanje kašike za transport rasutog tereta. Površina kontakta između karike lanca i spojnice predstavlja jedno od najopterećenijih mesta na celom elevatoru. Tokom redovnog održavanja na upotrebljenim i novim spojnicama lanaca uočene su prsline u otvrdnutim termički obrađenim zonama. Radi povećanja otpornosti spojnica na habanje one se u oblasti kontakta sa karikom lanca termički obrađuju. Pojava prslina u novim nekorišćenim spojnicama pokrenula je ispitivanja sa ciljem da se utvrdi poreklo prslina na novim spojnicama. Pored ispitivanja uzroka nastanka ovih prslina u radu su navedeni predlozi mera za sprečavanje njihovog nastanka., In spite of numerous and expensive research in the field of fatigue and fracture and regular control of end products, cracks occur every day in all fields of human activity. This paper describes failure analysis of chain brackets, used in conveyor systems for cement production. Chain type bucket elevators utilize chain brackets for joining segments of chain as well as for attaching brackets for bulk material transport. The contact zone between chain link and bracket is one of the most stressed in this elevator system. During regular maintenance, cracks are found on used and new brackets in the case hardened zone. Case hardening of the chain bracket is performed due to requirements for increased wear resistance of the chain link contact. The occurrence of cracks in new brackets raised the question regarding the origin of cracks and it is the main subject of this paper. This paper also suggests a solution for avoidance of cracks on chain brackets.",
publisher = "Integritet i vek konstrukcija, Beograd",
journal = "Structural Integrity and Life",
title = "Analiza loma spojnice lanca, Failure analysis of chain bracket",
pages = "126-123",
number = "2",
volume = "11",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7496"
}

Momčilović, D. B., Hut, N., Milović, L.,& Atanasovska, I..Analiza loma spojnice lanca. in Structural Integrity and Life
Integritet i vek konstrukcija, Beograd., 11(2), 123-126.
https://hdl.handle.net/21.15107/rcub_machinery_7496

Momčilović DB, Hut N, Milović L, Atanasovska I. Analiza loma spojnice lanca. in Structural Integrity and Life.11(2):123-126.
https://hdl.handle.net/21.15107/rcub_machinery_7496 .

Momčilović, Dejan B., Hut, Nenad, Milović, Ljubica, Atanasovska, Ivana, "Analiza loma spojnice lanca" in Structural Integrity and Life, 11, no. 2:123-126,
https://hdl.handle.net/21.15107/rcub_machinery_7496 .

TY  - CONF
AU  - Smoljanić, Tamara
AU  - Sedmak, Simon
AU  - Milovanović, Aleksa
AU  - Milović, Ljubica
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7110
AB  - One of the most important aspects of materials typically used in biomedical engineering is their resistance to various unfavourable exploitation conditions, which greatly impact their work life. In terms of extreme conditions, two major factors include fatigue and corrosion, and a combination of these can significantly decrease the expected life of various implants. The focus of this paper will be on hip implants made of Ti-Al6-4V titanium alloy, a material commonly used in such applications, due to its resistance to corrosion and bio-compatibility. Research shown here was based on experimental testing of said alloy in order to determine its mechanical properties under different working environments, including normal, salty and wet conditions. These properties were then used as input data for Extended Finite Element method (XFEM) numerical simulations of fatigue crack growth in hip implants with various geometries. This was of particular interest since specimens which were kept in salty and wet environment had a slight degradation of yield stress and tensile strength, but an increase in plasticity.
C3  - Procedia Structural Integrity
T1  - Numerical simulation of fatigue crack growth in Ti-Al6-V4 hip implants under different exploitation conditions
EP  - 221
SP  - 215
VL  - 48
DO  - 10.1016/j.prostr.2023.07.151
ER  - 

@conference{
author = "Smoljanić, Tamara and Sedmak, Simon and Milovanović, Aleksa and Milović, Ljubica",
year = "2023",
abstract = "One of the most important aspects of materials typically used in biomedical engineering is their resistance to various unfavourable exploitation conditions, which greatly impact their work life. In terms of extreme conditions, two major factors include fatigue and corrosion, and a combination of these can significantly decrease the expected life of various implants. The focus of this paper will be on hip implants made of Ti-Al6-4V titanium alloy, a material commonly used in such applications, due to its resistance to corrosion and bio-compatibility. Research shown here was based on experimental testing of said alloy in order to determine its mechanical properties under different working environments, including normal, salty and wet conditions. These properties were then used as input data for Extended Finite Element method (XFEM) numerical simulations of fatigue crack growth in hip implants with various geometries. This was of particular interest since specimens which were kept in salty and wet environment had a slight degradation of yield stress and tensile strength, but an increase in plasticity.",
journal = "Procedia Structural Integrity",
title = "Numerical simulation of fatigue crack growth in Ti-Al6-V4 hip implants under different exploitation conditions",
pages = "221-215",
volume = "48",
doi = "10.1016/j.prostr.2023.07.151"
}

Smoljanić, T., Sedmak, S., Milovanović, A.,& Milović, L.. (2023). Numerical simulation of fatigue crack growth in Ti-Al6-V4 hip implants under different exploitation conditions. in Procedia Structural Integrity, 48, 215-221.
https://doi.org/10.1016/j.prostr.2023.07.151

Smoljanić T, Sedmak S, Milovanović A, Milović L. Numerical simulation of fatigue crack growth in Ti-Al6-V4 hip implants under different exploitation conditions. in Procedia Structural Integrity. 2023;48:215-221.
doi:10.1016/j.prostr.2023.07.151 .

Smoljanić, Tamara, Sedmak, Simon, Milovanović, Aleksa, Milović, Ljubica, "Numerical simulation of fatigue crack growth in Ti-Al6-V4 hip implants under different exploitation conditions" in Procedia Structural Integrity, 48 (2023):215-221,
https://doi.org/10.1016/j.prostr.2023.07.151 . .

TY  - JOUR
AU  - Smoljanić, Tamara
AU  - Milovanović, Aleksa
AU  - Sedmak, Simon
AU  - Milović, Ljubica
AU  - Sedmak, Aleksandar
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7428
AB  - This paper presents development of numerical models for simulation of the behaviour of titanium alloy hip implants under static and dynamic loads, which is a part of extensive research involving the structural integrity of such implants under various loading conditions, as well as under exposure to aggressive environments. Numerical models were created in ABAQUS and ANSYS software packages, in order to determine the stress/strain distribution, the number of cycles to failure and stress intensity factors, for two different hip implant geometries. The ABAQUS models were used for static and ANSYS models for dynamic loads. The next stage in this analysis involved comparing these two cases, to determine the one with the better behaviour, depending on the exploitation conditions, which can greatly vary between different groups of patients. The targeted patient weight for all numerical simulations was 90 kg, while failure assessment diagrams were made for both implant geometries, assuming a crack length of 1 mm.
T2  - HEMIJSKA INDUSTRIJA (Chemical Industry)
T1  - Numerical simulation of titanium alloy hip replacement implants behaviour under static and dynamic loads
DO  - 10.2298/HEMIND221118026S
ER  - 

@article{
author = "Smoljanić, Tamara and Milovanović, Aleksa and Sedmak, Simon and Milović, Ljubica and Sedmak, Aleksandar",
year = "2023",
abstract = "This paper presents development of numerical models for simulation of the behaviour of titanium alloy hip implants under static and dynamic loads, which is a part of extensive research involving the structural integrity of such implants under various loading conditions, as well as under exposure to aggressive environments. Numerical models were created in ABAQUS and ANSYS software packages, in order to determine the stress/strain distribution, the number of cycles to failure and stress intensity factors, for two different hip implant geometries. The ABAQUS models were used for static and ANSYS models for dynamic loads. The next stage in this analysis involved comparing these two cases, to determine the one with the better behaviour, depending on the exploitation conditions, which can greatly vary between different groups of patients. The targeted patient weight for all numerical simulations was 90 kg, while failure assessment diagrams were made for both implant geometries, assuming a crack length of 1 mm.",
journal = "HEMIJSKA INDUSTRIJA (Chemical Industry)",
title = "Numerical simulation of titanium alloy hip replacement implants behaviour under static and dynamic loads",
doi = "10.2298/HEMIND221118026S"
}

Smoljanić, T., Milovanović, A., Sedmak, S., Milović, L.,& Sedmak, A.. (2023). Numerical simulation of titanium alloy hip replacement implants behaviour under static and dynamic loads. in HEMIJSKA INDUSTRIJA (Chemical Industry).
https://doi.org/10.2298/HEMIND221118026S

Smoljanić T, Milovanović A, Sedmak S, Milović L, Sedmak A. Numerical simulation of titanium alloy hip replacement implants behaviour under static and dynamic loads. in HEMIJSKA INDUSTRIJA (Chemical Industry). 2023;.
doi:10.2298/HEMIND221118026S .

Smoljanić, Tamara, Milovanović, Aleksa, Sedmak, Simon, Milović, Ljubica, Sedmak, Aleksandar, "Numerical simulation of titanium alloy hip replacement implants behaviour under static and dynamic loads" in HEMIJSKA INDUSTRIJA (Chemical Industry) (2023),
https://doi.org/10.2298/HEMIND221118026S . .

TY  - CONF
AU  - Maksimović, Ana
AU  - Milović, Ljubica
AU  - Bojana, Zečević
AU  - Đorđević, Branislav
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6359
AB  - This paper is devoted to the ductile–brittle transition behavior of high strength low alloyed structural steel NIOMOL 490K. This steel grade is designed for welded pressure vessels exposed to dynamic loads, operating at temperatures below zero, and that is why it must have acceptable toughness. Due to its importance for the safety assessment of pressure vessels, a characterization of this steel with Charpy V-notch test in range of temperature between-60 ⁰C and +60 ⁰C was undertaken. Ductile-to-brittle transition temperature curves were generated in the present study by using instrumented Charpy pendulum impact test on V-notch specimens. Notches were located in the parent material, heat-affected zone and weld metal. The nil-ductility temperature and tensile properties in temperature range from -60 ⁰C to +60 ⁰C are presented in this paper. We used different test temperatures to better understand ductile-to brittle transition response than just use either Charpy energy or other related ductility criteria.
C3  - Procedia Structural Integrity 23 European Conference on Fracture
T1  - Determination of ductile-to-brittle transition temperature of NIOMOL 490K steel welded joints
EP  - 1368
SP  - 1361
VL  - 42
DO  - 10.1016/j.prostr.2022.12.173
ER  - 

@conference{
author = "Maksimović, Ana and Milović, Ljubica and Bojana, Zečević and Đorđević, Branislav and Bulatović, Srđan and Aleksić, Vujadin",
year = "2022",
abstract = "This paper is devoted to the ductile–brittle transition behavior of high strength low alloyed structural steel NIOMOL 490K. This steel grade is designed for welded pressure vessels exposed to dynamic loads, operating at temperatures below zero, and that is why it must have acceptable toughness. Due to its importance for the safety assessment of pressure vessels, a characterization of this steel with Charpy V-notch test in range of temperature between-60 ⁰C and +60 ⁰C was undertaken. Ductile-to-brittle transition temperature curves were generated in the present study by using instrumented Charpy pendulum impact test on V-notch specimens. Notches were located in the parent material, heat-affected zone and weld metal. The nil-ductility temperature and tensile properties in temperature range from -60 ⁰C to +60 ⁰C are presented in this paper. We used different test temperatures to better understand ductile-to brittle transition response than just use either Charpy energy or other related ductility criteria.",
journal = "Procedia Structural Integrity 23 European Conference on Fracture",
title = "Determination of ductile-to-brittle transition temperature of NIOMOL 490K steel welded joints",
pages = "1368-1361",
volume = "42",
doi = "10.1016/j.prostr.2022.12.173"
}

Maksimović, A., Milović, L., Bojana, Z., Đorđević, B., Bulatović, S.,& Aleksić, V.. (2022). Determination of ductile-to-brittle transition temperature of NIOMOL 490K steel welded joints. in Procedia Structural Integrity 23 European Conference on Fracture, 42, 1361-1368.
https://doi.org/10.1016/j.prostr.2022.12.173

Maksimović A, Milović L, Bojana Z, Đorđević B, Bulatović S, Aleksić V. Determination of ductile-to-brittle transition temperature of NIOMOL 490K steel welded joints. in Procedia Structural Integrity 23 European Conference on Fracture. 2022;42:1361-1368.
doi:10.1016/j.prostr.2022.12.173 .

Maksimović, Ana, Milović, Ljubica, Bojana, Zečević, Đorđević, Branislav, Bulatović, Srđan, Aleksić, Vujadin, "Determination of ductile-to-brittle transition temperature of NIOMOL 490K steel welded joints" in Procedia Structural Integrity 23 European Conference on Fracture, 42 (2022):1361-1368,
https://doi.org/10.1016/j.prostr.2022.12.173 . .

TY  - CONF
AU  - Maneski, Taško
AU  - Milošević-Mitić, Vesna
AU  - Milović, Ljubica
AU  - Jovanović, Miloš
AU  - Anđelić, Nina
AU  - Petrović, Ana
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6015
AB  - Industrial robots are used for high-precision tasks and in intensive production.  One of the most reliable methods for monitoring robots’ work is vibrodiagnostics, which provides recommendations and maintenance procedures, and also serves as a reliable diagnostic method for determining the causes of industrial robot failures. Connection of robot and the supporting structure is very important and it affects on dynamic behavior of the robot. This paper presents the process of diagnosing dynamic condition of the structure with painting robots, after the failure of the robot motion reducer. To analyze the causes of the failure, a numerical analysis was performed, which included: static calculation, dynamic calculation, determining transfer function in frequency domain and reinforcement factors. Supporting structure has very low eigen-frequencies (3,5 to 9.5 Hz), it cannot accept inertial forces and large deformations and resonant behavior occur. Using FEM analysis is shown that the behavior of the structure is unfavorable because 20 eigen-oscillations had a frequency less than 17 Hz, and all are located in the robots’ working space. Determination of the transfer functions showed that the dynamic gain factor in all three directions of the excitation force is extremely large, while the corresponding frequencies are 5 ÷ 20 Hz.  It was determined that the main problem was the rigidity of the supporting structure.
C3  - ECF23, European Conference on Fracture 2022, Procedia Structural Integrity
T1  - Identification of the cause of incorrect work of bumper paint robot reducer
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6015
ER  - 

@conference{
author = "Maneski, Taško and Milošević-Mitić, Vesna and Milović, Ljubica and Jovanović, Miloš and Anđelić, Nina and Petrović, Ana",
year = "2022",
abstract = "Industrial robots are used for high-precision tasks and in intensive production.  One of the most reliable methods for monitoring robots’ work is vibrodiagnostics, which provides recommendations and maintenance procedures, and also serves as a reliable diagnostic method for determining the causes of industrial robot failures. Connection of robot and the supporting structure is very important and it affects on dynamic behavior of the robot. This paper presents the process of diagnosing dynamic condition of the structure with painting robots, after the failure of the robot motion reducer. To analyze the causes of the failure, a numerical analysis was performed, which included: static calculation, dynamic calculation, determining transfer function in frequency domain and reinforcement factors. Supporting structure has very low eigen-frequencies (3,5 to 9.5 Hz), it cannot accept inertial forces and large deformations and resonant behavior occur. Using FEM analysis is shown that the behavior of the structure is unfavorable because 20 eigen-oscillations had a frequency less than 17 Hz, and all are located in the robots’ working space. Determination of the transfer functions showed that the dynamic gain factor in all three directions of the excitation force is extremely large, while the corresponding frequencies are 5 ÷ 20 Hz.  It was determined that the main problem was the rigidity of the supporting structure.",
journal = "ECF23, European Conference on Fracture 2022, Procedia Structural Integrity",
title = "Identification of the cause of incorrect work of bumper paint robot reducer",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6015"
}

Maneski, T., Milošević-Mitić, V., Milović, L., Jovanović, M., Anđelić, N.,& Petrović, A.. (2022). Identification of the cause of incorrect work of bumper paint robot reducer. in ECF23, European Conference on Fracture 2022, Procedia Structural Integrity.
https://hdl.handle.net/21.15107/rcub_machinery_6015

Maneski T, Milošević-Mitić V, Milović L, Jovanović M, Anđelić N, Petrović A. Identification of the cause of incorrect work of bumper paint robot reducer. in ECF23, European Conference on Fracture 2022, Procedia Structural Integrity. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_6015 .

Maneski, Taško, Milošević-Mitić, Vesna, Milović, Ljubica, Jovanović, Miloš, Anđelić, Nina, Petrović, Ana, "Identification of the cause of incorrect work of bumper paint robot reducer" in ECF23, European Conference on Fracture 2022, Procedia Structural Integrity (2022),
https://hdl.handle.net/21.15107/rcub_machinery_6015 .

TY  - JOUR
AU  - Manić, Nebojša
AU  - Janković, Bojan
AU  - Milović, Ljubica
AU  - Komatina, Mirko
AU  - Stojiljković, Dragoslava
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/92
AB  - This study presents the experimental results of the mechanical and thermophysical properties of wood pellet samples important for their utilization in pellet stoves and boilers for heat production. The impact of operational parameters during the production process on a single pelletizer unit for three typical domestic commercial wood pellet samples (PWP110, BWP110, and BWP140) on fuel particle mechanical characteristics and related thermal properties was analyzed. It was concluded that the changes in raw material selection, as well as related operating parameters (extrusion length, i.e., die temperature during production process), have influenced the key mechanical and thermal characteristics of tested commercial wood pellets. The presented results have indicated the existence of a thin solid layer (due to waxes and subsequently lignin coating layer behaviors depending on their glass transition temperatures) on the surface of the BWP140 pellet sample. This layer leads to increasing the thermal resistance in the considered sample which can be explained by decreasing the effective thermal conductivity. Also, the forming of this layer on the surface of the wood pellet sample was caused by the production process (high-temperature impact explained by increasing friction between the die and feedstock during pellets production). It could be related to a lower value of effective thermal conductivity and specific heat capacity for considered (Beech) wood pellet sample.
PB  - Springer Heidelberg, Heidelberg
T2  - Biomass Conversion and Biorefinery
T1  - The impact of production operating parameters on mechanical and thermophysical characteristics of commercial wood pellets
DO  - 10.1007/s13399-021-01609-4
ER  - 

@article{
author = "Manić, Nebojša and Janković, Bojan and Milović, Ljubica and Komatina, Mirko and Stojiljković, Dragoslava",
year = "2021",
abstract = "This study presents the experimental results of the mechanical and thermophysical properties of wood pellet samples important for their utilization in pellet stoves and boilers for heat production. The impact of operational parameters during the production process on a single pelletizer unit for three typical domestic commercial wood pellet samples (PWP110, BWP110, and BWP140) on fuel particle mechanical characteristics and related thermal properties was analyzed. It was concluded that the changes in raw material selection, as well as related operating parameters (extrusion length, i.e., die temperature during production process), have influenced the key mechanical and thermal characteristics of tested commercial wood pellets. The presented results have indicated the existence of a thin solid layer (due to waxes and subsequently lignin coating layer behaviors depending on their glass transition temperatures) on the surface of the BWP140 pellet sample. This layer leads to increasing the thermal resistance in the considered sample which can be explained by decreasing the effective thermal conductivity. Also, the forming of this layer on the surface of the wood pellet sample was caused by the production process (high-temperature impact explained by increasing friction between the die and feedstock during pellets production). It could be related to a lower value of effective thermal conductivity and specific heat capacity for considered (Beech) wood pellet sample.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Biomass Conversion and Biorefinery",
title = "The impact of production operating parameters on mechanical and thermophysical characteristics of commercial wood pellets",
doi = "10.1007/s13399-021-01609-4"
}

Manić, N., Janković, B., Milović, L., Komatina, M.,& Stojiljković, D.. (2021). The impact of production operating parameters on mechanical and thermophysical characteristics of commercial wood pellets. in Biomass Conversion and Biorefinery
Springer Heidelberg, Heidelberg..
https://doi.org/10.1007/s13399-021-01609-4

Manić N, Janković B, Milović L, Komatina M, Stojiljković D. The impact of production operating parameters on mechanical and thermophysical characteristics of commercial wood pellets. in Biomass Conversion and Biorefinery. 2021;.
doi:10.1007/s13399-021-01609-4 .

Manić, Nebojša, Janković, Bojan, Milović, Ljubica, Komatina, Mirko, Stojiljković, Dragoslava, "The impact of production operating parameters on mechanical and thermophysical characteristics of commercial wood pellets" in Biomass Conversion and Biorefinery (2021),
https://doi.org/10.1007/s13399-021-01609-4 . .

TY  - JOUR
AU  - Sedmak, Aleksandar
AU  - Hemer, Abubkr
AU  - Sedmak, Simon
AU  - Milović, Ljubica
AU  - Grbović, Aleksandar
AU  - Cabrilo, Aleksandar
AU  - Kljajin, Milan
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3508
AB  - Fatigue crack growth through different welded joint regions was investigated, in terms of welded joint geometry and fatigue crack position. In the first phase of investigation, numerical simulation of crack growth in a welded joint made of steel P460NL1 was performed using extended Finite Element Methods (xFEM). Numerical models employed Paris law, using experimentally determined coefficients for each welded joint zone. Weld geometry was varied by using different heat affected zone (HAZ) widths, i.e. fatigue crack lengths. The second stage involved similar numerical models with different material (Protac 500). Fatigue lives for regions in both models were then compared.
PB  - Elsevier Sci Ltd, Oxford
T2  - International Journal of Fatigue
T1  - Welded joint geometry effect on fatigue crack growth resistance in different metallic materials
VL  - 150
DO  - 10.1016/j.ijfatigue.2021.106298
ER  - 

@article{
author = "Sedmak, Aleksandar and Hemer, Abubkr and Sedmak, Simon and Milović, Ljubica and Grbović, Aleksandar and Cabrilo, Aleksandar and Kljajin, Milan",
year = "2021",
abstract = "Fatigue crack growth through different welded joint regions was investigated, in terms of welded joint geometry and fatigue crack position. In the first phase of investigation, numerical simulation of crack growth in a welded joint made of steel P460NL1 was performed using extended Finite Element Methods (xFEM). Numerical models employed Paris law, using experimentally determined coefficients for each welded joint zone. Weld geometry was varied by using different heat affected zone (HAZ) widths, i.e. fatigue crack lengths. The second stage involved similar numerical models with different material (Protac 500). Fatigue lives for regions in both models were then compared.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "International Journal of Fatigue",
title = "Welded joint geometry effect on fatigue crack growth resistance in different metallic materials",
volume = "150",
doi = "10.1016/j.ijfatigue.2021.106298"
}

Sedmak, A., Hemer, A., Sedmak, S., Milović, L., Grbović, A., Cabrilo, A.,& Kljajin, M.. (2021). Welded joint geometry effect on fatigue crack growth resistance in different metallic materials. in International Journal of Fatigue
Elsevier Sci Ltd, Oxford., 150.
https://doi.org/10.1016/j.ijfatigue.2021.106298

Sedmak A, Hemer A, Sedmak S, Milović L, Grbović A, Cabrilo A, Kljajin M. Welded joint geometry effect on fatigue crack growth resistance in different metallic materials. in International Journal of Fatigue. 2021;150.
doi:10.1016/j.ijfatigue.2021.106298 .

Sedmak, Aleksandar, Hemer, Abubkr, Sedmak, Simon, Milović, Ljubica, Grbović, Aleksandar, Cabrilo, Aleksandar, Kljajin, Milan, "Welded joint geometry effect on fatigue crack growth resistance in different metallic materials" in International Journal of Fatigue, 150 (2021),
https://doi.org/10.1016/j.ijfatigue.2021.106298 . .

TY  - CONF
AU  - Aranđelović, Mihajlo
AU  - Sedmak, Simon
AU  - Milović, Ljubica
AU  - Maksimović, A.
AU  - Bozić, Z.
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3268
AB  - Crack propagation in 3PB specimen has been investigated experimentally by using Digital Image Correlation (DIC) technique. For this purpose, specimens were taken from butt welded plates, made of P460NL1 micro-alloyed steel. Fatigue pre-crack of 3PB specimens was introduced in the weld metal. Specimens were then statically loaded and analyzed using digital image correlation software ARAMIS to assess strain fields and crack propagation paths. Bifurcation of cracks was noticed as the main characteristics of crack prop-agation in the analyzed case.
PB  - Elsevier, Amsterdam
C3  - Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1
T1  - Crack propagation in 3PB specimen made from welded joint
EP  - 445
SP  - 440
VL  - 28
DO  - 10.1016/j.prostr.2020.10.051
ER  - 

@conference{
author = "Aranđelović, Mihajlo and Sedmak, Simon and Milović, Ljubica and Maksimović, A. and Bozić, Z.",
year = "2020",
abstract = "Crack propagation in 3PB specimen has been investigated experimentally by using Digital Image Correlation (DIC) technique. For this purpose, specimens were taken from butt welded plates, made of P460NL1 micro-alloyed steel. Fatigue pre-crack of 3PB specimens was introduced in the weld metal. Specimens were then statically loaded and analyzed using digital image correlation software ARAMIS to assess strain fields and crack propagation paths. Bifurcation of cracks was noticed as the main characteristics of crack prop-agation in the analyzed case.",
publisher = "Elsevier, Amsterdam",
journal = "Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1",
title = "Crack propagation in 3PB specimen made from welded joint",
pages = "445-440",
volume = "28",
doi = "10.1016/j.prostr.2020.10.051"
}

Aranđelović, M., Sedmak, S., Milović, L., Maksimović, A.,& Bozić, Z.. (2020). Crack propagation in 3PB specimen made from welded joint. in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1
Elsevier, Amsterdam., 28, 440-445.
https://doi.org/10.1016/j.prostr.2020.10.051

Aranđelović M, Sedmak S, Milović L, Maksimović A, Bozić Z. Crack propagation in 3PB specimen made from welded joint. in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1. 2020;28:440-445.
doi:10.1016/j.prostr.2020.10.051 .

Aranđelović, Mihajlo, Sedmak, Simon, Milović, Ljubica, Maksimović, A., Bozić, Z., "Crack propagation in 3PB specimen made from welded joint" in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1, 28 (2020):440-445,
https://doi.org/10.1016/j.prostr.2020.10.051 . .

TY  - JOUR
AU  - Hemer, Abubkr M.
AU  - Aranđelović, Mihajlo
AU  - Milović, Ljubica
AU  - Kljajin, Milan
AU  - Lozanović Šajić, Jasmina
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3299
AB  - This research will show the analytical way of determining the remaining life of a welded joint with a fatigue crack initiated in its heat affected zone. The calculation will be divided into two stages, since the fatigue crack propagated through the heat affected zone, and then through the parent material. The analysis will be related to specimens with different fatigue properties taken into account for both regions. These calculations included a number of models, since different crack lengths were used for the heat affected zone and the parent material. There were three pairs of different HAZ vs PM fatigue crack lengths, always with the assumption that the total crack length is 5 mm, due to measuring range of the used measuring foils. The aim of this analysis was to apply method typically used in fracture mechanics in order to determine the number of cycles in a welded joint with an initiated fatigue crack, depending on a number of parameters. Obtained results were then compared to the results from the numerical analysis for the same cases. While the total number of cycles was mostly unaffected by these changes, some noticeable differences were observed between individual welded joint regions in question, the heat affected zone and the parent material.
PB  - Univ Osijek, Tech Fac, Slavonski Brod
T2  - Tehnički vjesnik
T1  - Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions
EP  - 1937
IS  - 6
SP  - 1931
VL  - 27
DO  - 10.17559/TV-20200921152557
ER  - 

@article{
author = "Hemer, Abubkr M. and Aranđelović, Mihajlo and Milović, Ljubica and Kljajin, Milan and Lozanović Šajić, Jasmina",
year = "2020",
abstract = "This research will show the analytical way of determining the remaining life of a welded joint with a fatigue crack initiated in its heat affected zone. The calculation will be divided into two stages, since the fatigue crack propagated through the heat affected zone, and then through the parent material. The analysis will be related to specimens with different fatigue properties taken into account for both regions. These calculations included a number of models, since different crack lengths were used for the heat affected zone and the parent material. There were three pairs of different HAZ vs PM fatigue crack lengths, always with the assumption that the total crack length is 5 mm, due to measuring range of the used measuring foils. The aim of this analysis was to apply method typically used in fracture mechanics in order to determine the number of cycles in a welded joint with an initiated fatigue crack, depending on a number of parameters. Obtained results were then compared to the results from the numerical analysis for the same cases. While the total number of cycles was mostly unaffected by these changes, some noticeable differences were observed between individual welded joint regions in question, the heat affected zone and the parent material.",
publisher = "Univ Osijek, Tech Fac, Slavonski Brod",
journal = "Tehnički vjesnik",
title = "Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions",
pages = "1937-1931",
number = "6",
volume = "27",
doi = "10.17559/TV-20200921152557"
}

Hemer, A. M., Aranđelović, M., Milović, L., Kljajin, M.,& Lozanović Šajić, J.. (2020). Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions. in Tehnički vjesnik
Univ Osijek, Tech Fac, Slavonski Brod., 27(6), 1931-1937.
https://doi.org/10.17559/TV-20200921152557

Hemer AM, Aranđelović M, Milović L, Kljajin M, Lozanović Šajić J. Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions. in Tehnički vjesnik. 2020;27(6):1931-1937.
doi:10.17559/TV-20200921152557 .

Hemer, Abubkr M., Aranđelović, Mihajlo, Milović, Ljubica, Kljajin, Milan, Lozanović Šajić, Jasmina, "Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions" in Tehnički vjesnik, 27, no. 6 (2020):1931-1937,
https://doi.org/10.17559/TV-20200921152557 . .

TY  - CONF
AU  - Hemer, Abubkr M.
AU  - Sedmak, Simon
AU  - Milović, Ljubica
AU  - Grbović, Aleksandar
AU  - Sedmak, Aleksandar
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3338
AB  - Fatigue behaviour of welded joints is investigated, in terms of welded joint geometry and the fatigue crack position. It is based on previous work which involved numerical simulation of fatigue crack growth in a welded joint made of micro-alloyed, low-carbon pressure vessel steel P460NL1, with the main focus on fatigue crack growth rate through different welded joint regions. The goal here was to change the size of the heat affected zone, as the region in which the fatigue crack initiated, and to compare the results obtained for new crack length values with the original ones, obtained by creating numerical models based on experimental data. A number of models were created, some of which simulated the case with a bigger heat affected zone (and, consequently, a smaller crack length in the weld metal), and other which simulated the case with a smaller heat affected zone. Due to the micro-structural differences between these two welded joint regions, noticeable differences appeared in the numbers of cycles obtained for each zone with varying fatigue crack lengths, as well as in the total number of cycles for both zones through which the crack propagated.
PB  - Elsevier, Amsterdam
C3  - Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1
T1  - FEM simulation of welded joint geometry influence on fatigue crack growth resistance
EP  - 1832
SP  - 1827
VL  - 28
DO  - 10.1016/j.prostr.2020.11.005
ER  - 

@conference{
author = "Hemer, Abubkr M. and Sedmak, Simon and Milović, Ljubica and Grbović, Aleksandar and Sedmak, Aleksandar",
year = "2020",
abstract = "Fatigue behaviour of welded joints is investigated, in terms of welded joint geometry and the fatigue crack position. It is based on previous work which involved numerical simulation of fatigue crack growth in a welded joint made of micro-alloyed, low-carbon pressure vessel steel P460NL1, with the main focus on fatigue crack growth rate through different welded joint regions. The goal here was to change the size of the heat affected zone, as the region in which the fatigue crack initiated, and to compare the results obtained for new crack length values with the original ones, obtained by creating numerical models based on experimental data. A number of models were created, some of which simulated the case with a bigger heat affected zone (and, consequently, a smaller crack length in the weld metal), and other which simulated the case with a smaller heat affected zone. Due to the micro-structural differences between these two welded joint regions, noticeable differences appeared in the numbers of cycles obtained for each zone with varying fatigue crack lengths, as well as in the total number of cycles for both zones through which the crack propagated.",
publisher = "Elsevier, Amsterdam",
journal = "Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1",
title = "FEM simulation of welded joint geometry influence on fatigue crack growth resistance",
pages = "1832-1827",
volume = "28",
doi = "10.1016/j.prostr.2020.11.005"
}

Hemer, A. M., Sedmak, S., Milović, L., Grbović, A.,& Sedmak, A.. (2020). FEM simulation of welded joint geometry influence on fatigue crack growth resistance. in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1
Elsevier, Amsterdam., 28, 1827-1832.
https://doi.org/10.1016/j.prostr.2020.11.005

Hemer AM, Sedmak S, Milović L, Grbović A, Sedmak A. FEM simulation of welded joint geometry influence on fatigue crack growth resistance. in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1. 2020;28:1827-1832.
doi:10.1016/j.prostr.2020.11.005 .

Hemer, Abubkr M., Sedmak, Simon, Milović, Ljubica, Grbović, Aleksandar, Sedmak, Aleksandar, "FEM simulation of welded joint geometry influence on fatigue crack growth resistance" in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1, 28 (2020):1827-1832,
https://doi.org/10.1016/j.prostr.2020.11.005 . .

TY  - JOUR
AU  - Hemer, Abubkr
AU  - Milović, Ljubica
AU  - Grbović, Aleksandar
AU  - Aleksić, Bojana
AU  - Aleksić, Vujadin
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3303
AB  - Most of the serious weldment failures lead to catastrophic consequences in terms of damage of other equipment, loss of production, and risks to workers' health and safety. Hence, there is motivation to find margin between safety and disaster. This necessitates guaranteeing the integrity of a welded structure even if a crack is present. Therefore, influence of the material inhomogeneity and residual stresses on deformation and fracture behavior needs to be described precisely. Fracture mechanics parameters J - integral and CTOD have attracted great interest in recent years. Two three point bending specimens of base metal (BM) and weld metal (WM) were tested according to standard BS EN ISO 15653. Than, a two dimensional finite element analysis was performed in Ansys Workbench software to calculate J-integral, and compare with experimental results. The aim of this work is to explore the possibility of using the test results in the reliable prediction of weldment fracture.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Numerical determination and experimental validation of the fracture toughness of welded joints
VL  - 107
DO  - 10.1016/j.engfailanal.2019.104220
ER  - 

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

Hemer, A., Milović, L., Grbović, A., Aleksić, B.,& Aleksić, V.. (2020). Numerical determination and experimental validation of the fracture toughness of welded joints. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 107.
https://doi.org/10.1016/j.engfailanal.2019.104220

Hemer A, Milović L, Grbović A, Aleksić B, Aleksić V. Numerical determination and experimental validation of the fracture toughness of welded joints. in Engineering Failure Analysis. 2020;107.
doi:10.1016/j.engfailanal.2019.104220 .

Hemer, Abubkr, Milović, Ljubica, Grbović, Aleksandar, Aleksić, Bojana, Aleksić, Vujadin, "Numerical determination and experimental validation of the fracture toughness of welded joints" in Engineering Failure Analysis, 107 (2020),
https://doi.org/10.1016/j.engfailanal.2019.104220 . .

TY  - CONF
AU  - Milović, Ljubica
AU  - Dojčinović, Marina
AU  - Jegdić, Bore
AU  - Anđelić, Nina
AU  - Milošević-Mitić, Vesna
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5982
AB  - The electrochemical behaviour of the P/T91 steel with martensitic microstructure as well as its behaviour 
in cavitation conditions has been investigated in this study. The electrochemical techniques used to 
analyze corrosion behaviour include Linear Polarization Resistance (LPR), Electrochemical Impedance 
Spectroscopy (EIS) and Linear Sweep Voltammetry (LSV). Corrosion rate determination was performed 
in a solution that simulates the industrial atmosphere. In laboratory conditions, ultrasonic vibratory 
cavitation test set up (stationary specimen method) has been applied on specimens made of P/T91 steel. 
Scanning electron microscopy technique has been applied to analyze the morphology of the eroded 
surfaces and to interpret the results of the cavitation tests. Test results have shown that, from the point of 
view of corrosion, P/T91 steel has a favourable chemical composition but the unfavourable lamellar martensite microstructure. Also, the morphology of surface damage from cavitation of P/T91 steel 
resembles the features of the fatigue failure. In order to evaluate the resistance to cavitation of 
investigated material, its cavitation rate was compared with those of some other martensitic steels used in 
fabrication of various industrial components for application in thermal power plants.
C3  - Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia
T1  - Corrosion and Cavitation resistance of P/T91 Steel
SP  - 187
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5982
ER  - 

@conference{
author = "Milović, Ljubica and Dojčinović, Marina and Jegdić, Bore and Anđelić, Nina and Milošević-Mitić, Vesna",
year = "2019",
abstract = "The electrochemical behaviour of the P/T91 steel with martensitic microstructure as well as its behaviour 
in cavitation conditions has been investigated in this study. The electrochemical techniques used to 
analyze corrosion behaviour include Linear Polarization Resistance (LPR), Electrochemical Impedance 
Spectroscopy (EIS) and Linear Sweep Voltammetry (LSV). Corrosion rate determination was performed 
in a solution that simulates the industrial atmosphere. In laboratory conditions, ultrasonic vibratory 
cavitation test set up (stationary specimen method) has been applied on specimens made of P/T91 steel. 
Scanning electron microscopy technique has been applied to analyze the morphology of the eroded 
surfaces and to interpret the results of the cavitation tests. Test results have shown that, from the point of 
view of corrosion, P/T91 steel has a favourable chemical composition but the unfavourable lamellar martensite microstructure. Also, the morphology of surface damage from cavitation of P/T91 steel 
resembles the features of the fatigue failure. In order to evaluate the resistance to cavitation of 
investigated material, its cavitation rate was compared with those of some other martensitic steels used in 
fabrication of various industrial components for application in thermal power plants.",
journal = "Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia",
title = "Corrosion and Cavitation resistance of P/T91 Steel",
pages = "187",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5982"
}

Milović, L., Dojčinović, M., Jegdić, B., Anđelić, N.,& Milošević-Mitić, V.. (2019). Corrosion and Cavitation resistance of P/T91 Steel. in Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia, 187.
https://hdl.handle.net/21.15107/rcub_machinery_5982

Milović L, Dojčinović M, Jegdić B, Anđelić N, Milošević-Mitić V. Corrosion and Cavitation resistance of P/T91 Steel. in Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia. 2019;:187.
https://hdl.handle.net/21.15107/rcub_machinery_5982 .

Milović, Ljubica, Dojčinović, Marina, Jegdić, Bore, Anđelić, Nina, Milošević-Mitić, Vesna, "Corrosion and Cavitation resistance of P/T91 Steel" in Abstract Book - 13th International Conference on the Mechanical Behaviour of Materials, 11-14 June, Melbourne, Australia (2019):187,
https://hdl.handle.net/21.15107/rcub_machinery_5982 .

TY  - CONF
AU  - Milošević-Mitić, Vesna
AU  - Anđelić, Nina
AU  - Milović, Ljubica
AU  - Maneski, Taško
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5556
AB  - The paper presents an analytical closed-form solution to the problem of dynamic change in 
the temperature field of a steel sample model during a short-term heating up and thereafter intense heat removal. It is demonstrated how a relatively complex thermal problem can be solved analytically based on differential equation that describes the temperature field. Differential equation that describes the temperature field is formed via the power of several heat sources with limited action time, as shown mathematically by applying the Dirac and Heaviside functions. In the present paper the example provided includes two heat sources. In accordance with boundary conditions the differential equation is solved by applying the finite Fourier transforms and Laplace transform. Based on obtained analytical solution of the problem, a numerical model was created corresponding to the simulation of steel sample heating on a thermomechanical welding simulator. The welding thermal simulator is a device used to achieve controlled heating and cooling, similar to the one in welding. Analytically calculated temperature fields were utilized to obtain the strain distribution in the heat source environment by applying the finite element method.
C3  - Proceedings of the 13th International Conference on the Mechanical Behaviour of Materials (ICM 13), Melbourne, Australia
T1  - Analytical Determination of the Dynamic Temperature Field of a Steel Sample  Exposed to Intense Heating by Applying a Line-Heat-Source
EP  - 620
SP  - 613
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5556
ER  - 

@conference{
author = "Milošević-Mitić, Vesna and Anđelić, Nina and Milović, Ljubica and Maneski, Taško",
year = "2019",
abstract = "The paper presents an analytical closed-form solution to the problem of dynamic change in 
the temperature field of a steel sample model during a short-term heating up and thereafter intense heat removal. It is demonstrated how a relatively complex thermal problem can be solved analytically based on differential equation that describes the temperature field. Differential equation that describes the temperature field is formed via the power of several heat sources with limited action time, as shown mathematically by applying the Dirac and Heaviside functions. In the present paper the example provided includes two heat sources. In accordance with boundary conditions the differential equation is solved by applying the finite Fourier transforms and Laplace transform. Based on obtained analytical solution of the problem, a numerical model was created corresponding to the simulation of steel sample heating on a thermomechanical welding simulator. The welding thermal simulator is a device used to achieve controlled heating and cooling, similar to the one in welding. Analytically calculated temperature fields were utilized to obtain the strain distribution in the heat source environment by applying the finite element method.",
journal = "Proceedings of the 13th International Conference on the Mechanical Behaviour of Materials (ICM 13), Melbourne, Australia",
title = "Analytical Determination of the Dynamic Temperature Field of a Steel Sample  Exposed to Intense Heating by Applying a Line-Heat-Source",
pages = "620-613",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5556"
}

Milošević-Mitić, V., Anđelić, N., Milović, L.,& Maneski, T.. (2019). Analytical Determination of the Dynamic Temperature Field of a Steel Sample  Exposed to Intense Heating by Applying a Line-Heat-Source. in Proceedings of the 13th International Conference on the Mechanical Behaviour of Materials (ICM 13), Melbourne, Australia, 613-620.
https://hdl.handle.net/21.15107/rcub_machinery_5556

Milošević-Mitić V, Anđelić N, Milović L, Maneski T. Analytical Determination of the Dynamic Temperature Field of a Steel Sample  Exposed to Intense Heating by Applying a Line-Heat-Source. in Proceedings of the 13th International Conference on the Mechanical Behaviour of Materials (ICM 13), Melbourne, Australia. 2019;:613-620.
https://hdl.handle.net/21.15107/rcub_machinery_5556 .

Milošević-Mitić, Vesna, Anđelić, Nina, Milović, Ljubica, Maneski, Taško, "Analytical Determination of the Dynamic Temperature Field of a Steel Sample  Exposed to Intense Heating by Applying a Line-Heat-Source" in Proceedings of the 13th International Conference on the Mechanical Behaviour of Materials (ICM 13), Melbourne, Australia (2019):613-620,
https://hdl.handle.net/21.15107/rcub_machinery_5556 .

TY  - JOUR
AU  - Mijatović, Tamara
AU  - Milovanović, Aleksa
AU  - Sedmak, Aleksandar
AU  - Milović, Ljubica
AU  - Čolić, Katarina
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3213
AB  - Total hip replacement implants are used as an artificial replacement for disfunctional hips in order to sustain joint movement. Chosen material and design of total hip replacement are the most influential factors for artificial joint utilization. Selected total hip replacement is obtained by precision casting method, made from Ti6Al4V ELI (Extra Low Interstitials) alloy. In order to acquire a geometrical model of chosen implant, the 3D scanner is used and an obtained point cloud (PC), then exploited for reverse engineering to a CAD model. The neck thickness of implant affects angle of movement of the joint and structural integrity. Reducing the thickness of the neck section results in higher movement of the joint, but inversely affects its structural integrity. The 3D scanned implant has a neck thickness of 14.6 mm, and data from literature suggest that the best movement angle is for 9 mm thickness of the implant. In order to redesign the available implant, five different models with a neck thickness between 9 and 14.6 mm are made. Obtained results show the thickness effects the stress distribution in a critical area.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Integrity assessment of reverse engineered ti-6al-4v eli total hip replacement implant
EP  - 242
IS  - 3
SP  - 237
VL  - 19
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4195
ER  - 

@article{
author = "Mijatović, Tamara and Milovanović, Aleksa and Sedmak, Aleksandar and Milović, Ljubica and Čolić, Katarina",
year = "2019",
abstract = "Total hip replacement implants are used as an artificial replacement for disfunctional hips in order to sustain joint movement. Chosen material and design of total hip replacement are the most influential factors for artificial joint utilization. Selected total hip replacement is obtained by precision casting method, made from Ti6Al4V ELI (Extra Low Interstitials) alloy. In order to acquire a geometrical model of chosen implant, the 3D scanner is used and an obtained point cloud (PC), then exploited for reverse engineering to a CAD model. The neck thickness of implant affects angle of movement of the joint and structural integrity. Reducing the thickness of the neck section results in higher movement of the joint, but inversely affects its structural integrity. The 3D scanned implant has a neck thickness of 14.6 mm, and data from literature suggest that the best movement angle is for 9 mm thickness of the implant. In order to redesign the available implant, five different models with a neck thickness between 9 and 14.6 mm are made. Obtained results show the thickness effects the stress distribution in a critical area.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Integrity assessment of reverse engineered ti-6al-4v eli total hip replacement implant",
pages = "242-237",
number = "3",
volume = "19",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4195"
}

Mijatović, T., Milovanović, A., Sedmak, A., Milović, L.,& Čolić, K.. (2019). Integrity assessment of reverse engineered ti-6al-4v eli total hip replacement implant. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 19(3), 237-242.
https://hdl.handle.net/21.15107/rcub_technorep_4195

Mijatović T, Milovanović A, Sedmak A, Milović L, Čolić K. Integrity assessment of reverse engineered ti-6al-4v eli total hip replacement implant. in Structural Integrity and Life. 2019;19(3):237-242.
https://hdl.handle.net/21.15107/rcub_technorep_4195 .

Mijatović, Tamara, Milovanović, Aleksa, Sedmak, Aleksandar, Milović, Ljubica, Čolić, Katarina, "Integrity assessment of reverse engineered ti-6al-4v eli total hip replacement implant" in Structural Integrity and Life, 19, no. 3 (2019):237-242,
https://hdl.handle.net/21.15107/rcub_technorep_4195 .

TY  - JOUR
AU  - Aleksić, B.
AU  - Grbović, Aleksandar
AU  - Milović, Ljubica
AU  - Hemer, A.
AU  - Aleksić, Vujadin
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3033
AB  - In order to prevent the premature failure of steam pipeline produced of molybdenum-vanadium steel, the experimental tests were performed to measure fracture toughness and to determine the mechanical behaviour of cracked pipes. A finite element method was used to calculate the fracture behaviour of the pressurized pipeline made of 14MoV6-3 steel based on the J-integral computation. The J-R curves were experimentally obtained by the elastic unloading compliance method for the single edge notched bend specimens and compared with those obtained using finite element method. A two dimensional finite element analysis was performed in Ansys Workbench software to determine the stress distribution and calculate J-integral values for the selected specimen geometry. Special attention was paid to the influence of applied boundary conditions on the accuracy of J-integral values, as well as to the influence of mesh density. It is shown that numerically obtained J-values significantly depend on the number of nodes used to apply displacements. However, if recommendations proposed in this paper are implemented, the accuracy of calculated values is satisfactory and successful failure analysis can be carried out. This approach can be useful in engineering applications where time saving and costs reducing are required.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline
VL  - 106
DO  - 10.1016/j.engfailanal.2019.104165
ER  - 

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

Aleksić, B., Grbović, A., Milović, L., Hemer, A.,& Aleksić, V.. (2019). Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 106.
https://doi.org/10.1016/j.engfailanal.2019.104165

Aleksić B, Grbović A, Milović L, Hemer A, Aleksić V. Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline. in Engineering Failure Analysis. 2019;106.
doi:10.1016/j.engfailanal.2019.104165 .

Aleksić, B., Grbović, Aleksandar, Milović, Ljubica, Hemer, A., Aleksić, Vujadin, "Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline" in Engineering Failure Analysis, 106 (2019),
https://doi.org/10.1016/j.engfailanal.2019.104165 . .

TY  - CONF
AU  - Momčilović, Dejan B.
AU  - Atanasovska, Ivana
AU  - Milović, Ljubica
AU  - Odanović, Zoran
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7527
AB  - The fracture surface appearances are slowly changed through decade’s side by advantages in technology of steel production.Basic requirements for cleaner steels and lower energy consumption during production induce that newer steels have somedifferent fracture features compared to the old ones. This paper describes morphology of different corrosion fatigue andstress corrosion cracks. The brief failure analysis with key results will be presented for each case mentioned in paper, andemphasize will be on morphology and characteristic features of fracture surfaces. Macro appearance of fatigue cracks will bediscussed in detail and characteristic features of stress corrosion fractures will be analyzed. Also, the results from scanningelectron microscopy will be presented in this paper.
PB  - Society for Structural Integrity and Life – Prof. Dr Stojan Sedmak (DIVK)
C3  - Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, Serbia
T1  - Morphology of corrosion fatigue and stress corrosion cracks on low alloy steels
SP  - 129
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7527
ER  - 

@conference{
author = "Momčilović, Dejan B. and Atanasovska, Ivana and Milović, Ljubica and Odanović, Zoran",
year = "2018",
abstract = "The fracture surface appearances are slowly changed through decade’s side by advantages in technology of steel production.Basic requirements for cleaner steels and lower energy consumption during production induce that newer steels have somedifferent fracture features compared to the old ones. This paper describes morphology of different corrosion fatigue andstress corrosion cracks. The brief failure analysis with key results will be presented for each case mentioned in paper, andemphasize will be on morphology and characteristic features of fracture surfaces. Macro appearance of fatigue cracks will bediscussed in detail and characteristic features of stress corrosion fractures will be analyzed. Also, the results from scanningelectron microscopy will be presented in this paper.",
publisher = "Society for Structural Integrity and Life – Prof. Dr Stojan Sedmak (DIVK)",
journal = "Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, Serbia",
title = "Morphology of corrosion fatigue and stress corrosion cracks on low alloy steels",
pages = "129",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7527"
}

Momčilović, D. B., Atanasovska, I., Milović, L.,& Odanović, Z.. (2018). Morphology of corrosion fatigue and stress corrosion cracks on low alloy steels. in Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, Serbia
Society for Structural Integrity and Life – Prof. Dr Stojan Sedmak (DIVK)., 129.
https://hdl.handle.net/21.15107/rcub_machinery_7527

Momčilović DB, Atanasovska I, Milović L, Odanović Z. Morphology of corrosion fatigue and stress corrosion cracks on low alloy steels. in Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, Serbia. 2018;:129.
https://hdl.handle.net/21.15107/rcub_machinery_7527 .

Momčilović, Dejan B., Atanasovska, Ivana, Milović, Ljubica, Odanović, Zoran, "Morphology of corrosion fatigue and stress corrosion cracks on low alloy steels" in Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, Serbia (2018):129,
https://hdl.handle.net/21.15107/rcub_machinery_7527 .

TY  - CONF
AU  - Momčilović, Dejan B.
AU  - Milović, Ljubica
AU  - Atanasovska, Ivana
AU  - Odanović, Zoran
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7516
AB  - Commercial gas cylinders are common type of pressure vessels in many health care and technical facilities. Unexpectedfailures of gas cylinders occur despite of fact that the design, manufacture route, quality control, transportation, and handlingare specified by various standards and regulations, particularly in domain of periodic inspection. A case study of the suddenfailure of the 25 years old gas cylinder made of low-alloy steel is presented in this paper. Exploded cylinder was filled withcommercial mixture of nitrogen and CO/CO2. Results of chemical analysis, mechanical testing and microstructure andfracture surface examination of gas cylinder material are given in this paper. Key results from failure analysis revealed microcorrosion pitting as a consequence of undesired traces of moisture. This slow crack initiation combined with gas mixturefilling and exhausting cycles, promoted the local damage which could explain the mechanism of failure. In addition, theanalysis of gas cylinder material in moment of failure is evaluated by using the critical distance parameter
PB  - Society for Structural Integrity and Life – Prof. Dr Stojan Sedmak (DIVK)
C3  - Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, serbia
T1  - Gas cylinder rupture induced by local corrosion damage
SP  - 128
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7516
ER  - 

@conference{
author = "Momčilović, Dejan B. and Milović, Ljubica and Atanasovska, Ivana and Odanović, Zoran",
year = "2018",
abstract = "Commercial gas cylinders are common type of pressure vessels in many health care and technical facilities. Unexpectedfailures of gas cylinders occur despite of fact that the design, manufacture route, quality control, transportation, and handlingare specified by various standards and regulations, particularly in domain of periodic inspection. A case study of the suddenfailure of the 25 years old gas cylinder made of low-alloy steel is presented in this paper. Exploded cylinder was filled withcommercial mixture of nitrogen and CO/CO2. Results of chemical analysis, mechanical testing and microstructure andfracture surface examination of gas cylinder material are given in this paper. Key results from failure analysis revealed microcorrosion pitting as a consequence of undesired traces of moisture. This slow crack initiation combined with gas mixturefilling and exhausting cycles, promoted the local damage which could explain the mechanism of failure. In addition, theanalysis of gas cylinder material in moment of failure is evaluated by using the critical distance parameter",
publisher = "Society for Structural Integrity and Life – Prof. Dr Stojan Sedmak (DIVK)",
journal = "Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, serbia",
title = "Gas cylinder rupture induced by local corrosion damage",
pages = "128",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7516"
}

Momčilović, D. B., Milović, L., Atanasovska, I.,& Odanović, Z.. (2018). Gas cylinder rupture induced by local corrosion damage. in Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, serbia
Society for Structural Integrity and Life – Prof. Dr Stojan Sedmak (DIVK)., 128.
https://hdl.handle.net/21.15107/rcub_machinery_7516

Momčilović DB, Milović L, Atanasovska I, Odanović Z. Gas cylinder rupture induced by local corrosion damage. in Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, serbia. 2018;:128.
https://hdl.handle.net/21.15107/rcub_machinery_7516 .

Momčilović, Dejan B., Milović, Ljubica, Atanasovska, Ivana, Odanović, Zoran, "Gas cylinder rupture induced by local corrosion damage" in Book of abstracts - 22nd European Conference on Fracture - ECF22: LOADING AND ENVIRONMENT EFFECTS ON STRUCTURAL INTEGRITY, Belgrade, serbia (2018):128,
https://hdl.handle.net/21.15107/rcub_machinery_7516 .

TY  - JOUR
AU  - Lazović, Tatjana
AU  - Varagić, Sanja
AU  - Milović, Ljubica
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2761
AB  - The aim of this paper is to determine deformations and stresses in the statically loaded thrust ball bearing subjected to a centric external axial load. In this case, all balls in the bearing are equally engaged in the transmission of the operational load. The influence of the load on the stresses and deformations in the bearings of different series has been analysed. The obtained results are the basis for further research of the load distribution in an eccentrically loaded axial ball bearing in order to determine the reduction of the static load bearing capacity in relation to the values determined in appropriate standard and also to the values prescribed by manufacturers' catalogues.
PB  - Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad
T2  - Machine Design
T1  - Contact stresses and deformations in thrust ball bearing
EP  - 92
IS  - 3
SP  - 85
VL  - 10
DO  - 10.24867/MD.10.2018.3.85-92
ER  - 

@article{
author = "Lazović, Tatjana and Varagić, Sanja and Milović, Ljubica",
year = "2018",
abstract = "The aim of this paper is to determine deformations and stresses in the statically loaded thrust ball bearing subjected to a centric external axial load. In this case, all balls in the bearing are equally engaged in the transmission of the operational load. The influence of the load on the stresses and deformations in the bearings of different series has been analysed. The obtained results are the basis for further research of the load distribution in an eccentrically loaded axial ball bearing in order to determine the reduction of the static load bearing capacity in relation to the values determined in appropriate standard and also to the values prescribed by manufacturers' catalogues.",
publisher = "Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad",
journal = "Machine Design",
title = "Contact stresses and deformations in thrust ball bearing",
pages = "92-85",
number = "3",
volume = "10",
doi = "10.24867/MD.10.2018.3.85-92"
}

Lazović, T., Varagić, S.,& Milović, L.. (2018). Contact stresses and deformations in thrust ball bearing. in Machine Design
Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad., 10(3), 85-92.
https://doi.org/10.24867/MD.10.2018.3.85-92

Lazović T, Varagić S, Milović L. Contact stresses and deformations in thrust ball bearing. in Machine Design. 2018;10(3):85-92.
doi:10.24867/MD.10.2018.3.85-92 .

Lazović, Tatjana, Varagić, Sanja, Milović, Ljubica, "Contact stresses and deformations in thrust ball bearing" in Machine Design, 10, no. 3 (2018):85-92,
https://doi.org/10.24867/MD.10.2018.3.85-92 . .

TY  - CONF
AU  - Aleksić, Bojana
AU  - Milović, Ljubica
AU  - Grbović, Aleksandar
AU  - Hemer, Abubkr
AU  - Aleksić, Vujadin
AU  - Zrilić, Milorad
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2917
AB  - Steel grade 14MoV6-3 is a low-carbon microalloyed steel with addition of chromium and molybdenum. This grade is designed mainly for power industry applications, withstanding operating at elevated temperatures.In this paper, mechanical properties of steel grade 14MoV6-3 and methodology of calculation of critical values of the J-integral are presented. The level of damage is determined by analyzing the virgin material of the same grade. The focus of presented investigation is on the experimental J integral determination, where critical values of the J-integral (J(IC)) are compared with the values obtained by using the finite element methods (FEM). FEM model was defined on the basis of experimental conditions and obtained numerical values should confirm our experimental results.
PB  - Elsevier Science Bv, Amsterdam
C3  - Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity
T1  - Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines
EP  - 1594
SP  - 1589
VL  - 13
DO  - 10.1016/j.prostr.2018.12.335
ER  - 

@conference{
author = "Aleksić, Bojana and Milović, Ljubica and Grbović, Aleksandar and Hemer, Abubkr and Aleksić, Vujadin and Zrilić, Milorad",
year = "2018",
abstract = "Steel grade 14MoV6-3 is a low-carbon microalloyed steel with addition of chromium and molybdenum. This grade is designed mainly for power industry applications, withstanding operating at elevated temperatures.In this paper, mechanical properties of steel grade 14MoV6-3 and methodology of calculation of critical values of the J-integral are presented. The level of damage is determined by analyzing the virgin material of the same grade. The focus of presented investigation is on the experimental J integral determination, where critical values of the J-integral (J(IC)) are compared with the values obtained by using the finite element methods (FEM). FEM model was defined on the basis of experimental conditions and obtained numerical values should confirm our experimental results.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity",
title = "Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines",
pages = "1594-1589",
volume = "13",
doi = "10.1016/j.prostr.2018.12.335"
}

Aleksić, B., Milović, L., Grbović, A., Hemer, A., Aleksić, V.,& Zrilić, M.. (2018). Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity
Elsevier Science Bv, Amsterdam., 13, 1589-1594.
https://doi.org/10.1016/j.prostr.2018.12.335

Aleksić B, Milović L, Grbović A, Hemer A, Aleksić V, Zrilić M. Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity. 2018;13:1589-1594.
doi:10.1016/j.prostr.2018.12.335 .

Aleksić, Bojana, Milović, Ljubica, Grbović, Aleksandar, Hemer, Abubkr, Aleksić, Vujadin, Zrilić, Milorad, "Experimental and numerical investigations of the critical values of J-integral for the steel of steam pipelines" in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity, 13 (2018):1589-1594,
https://doi.org/10.1016/j.prostr.2018.12.335 . .

TY  - CONF
AU  - Petrovski, Blagoj
AU  - Sedmak, Aleksandar
AU  - Swei, M.
AU  - Milović, Ljubica
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2741
AB  - The deformation and crack growth behaviour of P22 and P91 steel weldments tested at 550 °C and 600 °C, respectively,compact C(T) type specimens with sharp EDM starter notches in the base metal (BM) and heat affected zone (HAZ) were tested.The test procedures are detailed and followed in ASTM E1457.00, the crack growth data are interpreted using the fracture mechanics parameter C*. The initial crack is located within the HAZ of the weldments for both steel types, comparison of results show large similarity of both steels behaviour and the crack growth rates for the crack located within the HAZ are higher than with BM values.
PB  - International Conference on Fracture
C3  - ICF 2017 - 14th International Conference on Fracture
T1  - Creep crack growth - Comparison of two steel P91 and P22
EP  - 874
SP  - 873
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3484
ER  - 

@conference{
author = "Petrovski, Blagoj and Sedmak, Aleksandar and Swei, M. and Milović, Ljubica",
year = "2017",
abstract = "The deformation and crack growth behaviour of P22 and P91 steel weldments tested at 550 °C and 600 °C, respectively,compact C(T) type specimens with sharp EDM starter notches in the base metal (BM) and heat affected zone (HAZ) were tested.The test procedures are detailed and followed in ASTM E1457.00, the crack growth data are interpreted using the fracture mechanics parameter C*. The initial crack is located within the HAZ of the weldments for both steel types, comparison of results show large similarity of both steels behaviour and the crack growth rates for the crack located within the HAZ are higher than with BM values.",
publisher = "International Conference on Fracture",
journal = "ICF 2017 - 14th International Conference on Fracture",
title = "Creep crack growth - Comparison of two steel P91 and P22",
pages = "874-873",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3484"
}

Petrovski, B., Sedmak, A., Swei, M.,& Milović, L.. (2017). Creep crack growth - Comparison of two steel P91 and P22. in ICF 2017 - 14th International Conference on Fracture
International Conference on Fracture., 2, 873-874.
https://hdl.handle.net/21.15107/rcub_technorep_3484

Petrovski B, Sedmak A, Swei M, Milović L. Creep crack growth - Comparison of two steel P91 and P22. in ICF 2017 - 14th International Conference on Fracture. 2017;2:873-874.
https://hdl.handle.net/21.15107/rcub_technorep_3484 .

Petrovski, Blagoj, Sedmak, Aleksandar, Swei, M., Milović, Ljubica, "Creep crack growth - Comparison of two steel P91 and P22" in ICF 2017 - 14th International Conference on Fracture, 2 (2017):873-874,
https://hdl.handle.net/21.15107/rcub_technorep_3484 .

TY  - CONF
AU  - Sedmak, Simon
AU  - Milović, Ljubica
AU  - Jovičić, Radomir
AU  - Đorđević, Branislav
AU  - Džindo, Emina
AU  - Zrilić, Milorad
AU  - Maneski, Taško
PY  - 2016
UR  - https://konferencia.unideb.hu/sites/default/files/upload_documents/iscame_proceedings4.pdf
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6148
AB  - The aim of this paper is to present the possibilities of application of digital image correlation (DIC)
method in measuring crack propagation in a welded joint specimen with a notch. For this purpose, specimens were taken from butt welded plates, made of P460NL1 micro-alloyed steel, which is typically used in manufacturing of pressure vessels, such as pipelines and storage tanks. Solid wire FILTUB 12M was used as additional material for the welded joints. Fatigue pre-cracking of threepoint bending specimens was done on the hydraulic testing machine 1332 INSTRON-100 kN by introducing fatigue crack in the weld metal region of the welded joint. 
After that specimens were analysed using digital image correlation software ARAMIS. This optical measuring system, in addition to the software also includes two cameras, which were used to record images of crack propagation in three dimensions, as well as the strain field.
C3  - 4 th INTERNATIONAL SCIENTIFIC CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING (ISCAME 2016
T1  - Non-contact monitoring of fatigue crack growth via digital image correlation method
EP  - 468
SP  - 463
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6148
ER  - 

@conference{
author = "Sedmak, Simon and Milović, Ljubica and Jovičić, Radomir and Đorđević, Branislav and Džindo, Emina and Zrilić, Milorad and Maneski, Taško",
year = "2016",
abstract = "The aim of this paper is to present the possibilities of application of digital image correlation (DIC)
method in measuring crack propagation in a welded joint specimen with a notch. For this purpose, specimens were taken from butt welded plates, made of P460NL1 micro-alloyed steel, which is typically used in manufacturing of pressure vessels, such as pipelines and storage tanks. Solid wire FILTUB 12M was used as additional material for the welded joints. Fatigue pre-cracking of threepoint bending specimens was done on the hydraulic testing machine 1332 INSTRON-100 kN by introducing fatigue crack in the weld metal region of the welded joint. 
After that specimens were analysed using digital image correlation software ARAMIS. This optical measuring system, in addition to the software also includes two cameras, which were used to record images of crack propagation in three dimensions, as well as the strain field.",
journal = "4 th INTERNATIONAL SCIENTIFIC CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING (ISCAME 2016",
title = "Non-contact monitoring of fatigue crack growth via digital image correlation method",
pages = "468-463",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6148"
}

Sedmak, S., Milović, L., Jovičić, R., Đorđević, B., Džindo, E., Zrilić, M.,& Maneski, T.. (2016). Non-contact monitoring of fatigue crack growth via digital image correlation method. in 4 th INTERNATIONAL SCIENTIFIC CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING (ISCAME 2016, 463-468.
https://hdl.handle.net/21.15107/rcub_machinery_6148

Sedmak S, Milović L, Jovičić R, Đorđević B, Džindo E, Zrilić M, Maneski T. Non-contact monitoring of fatigue crack growth via digital image correlation method. in 4 th INTERNATIONAL SCIENTIFIC CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING (ISCAME 2016. 2016;:463-468.
https://hdl.handle.net/21.15107/rcub_machinery_6148 .

Sedmak, Simon, Milović, Ljubica, Jovičić, Radomir, Đorđević, Branislav, Džindo, Emina, Zrilić, Milorad, Maneski, Taško, "Non-contact monitoring of fatigue crack growth via digital image correlation method" in 4 th INTERNATIONAL SCIENTIFIC CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING (ISCAME 2016 (2016):463-468,
https://hdl.handle.net/21.15107/rcub_machinery_6148 .

TY  - CONF
AU  - Marinković, Aleksandar
AU  - Stanković, Miloš
AU  - Lazović, Tatjana
AU  - Milović, Ljubica
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7588
C3  - Proceedings of OeTG – Symposium 2015, Wiener Neustadt
T1  - Self-lubritating Bearings of Polymer Materials – Application and Performances
EP  - 160
SP  - 153
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7588
ER  - 

@conference{
author = "Marinković, Aleksandar and Stanković, Miloš and Lazović, Tatjana and Milović, Ljubica",
year = "2015",
journal = "Proceedings of OeTG – Symposium 2015, Wiener Neustadt",
title = "Self-lubritating Bearings of Polymer Materials – Application and Performances",
pages = "160-153",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7588"
}

Marinković, A., Stanković, M., Lazović, T.,& Milović, L.. (2015). Self-lubritating Bearings of Polymer Materials – Application and Performances. in Proceedings of OeTG – Symposium 2015, Wiener Neustadt, 153-160.
https://hdl.handle.net/21.15107/rcub_machinery_7588

Marinković A, Stanković M, Lazović T, Milović L. Self-lubritating Bearings of Polymer Materials – Application and Performances. in Proceedings of OeTG – Symposium 2015, Wiener Neustadt. 2015;:153-160.
https://hdl.handle.net/21.15107/rcub_machinery_7588 .

Marinković, Aleksandar, Stanković, Miloš, Lazović, Tatjana, Milović, Ljubica, "Self-lubritating Bearings of Polymer Materials – Application and Performances" in Proceedings of OeTG – Symposium 2015, Wiener Neustadt (2015):153-160,
https://hdl.handle.net/21.15107/rcub_machinery_7588 .

TY  - CONF
AU  - Marinković, Aleksandar
AU  - Stanković, Miloš
AU  - Milović, Ljubica
AU  - Lazović, Tatjana
AU  - Marković, Svetislav
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7584
AB  - Self-lubricating sliding bearings are widely used in numerous industrial applications, primary regarding their specific lubrication mechanism. This lubrication mechanism is a main advantage compared with classical sliding bearings, where their production is not so complicate and makes lower price. This kind of bearing could be simple to assembly and in operating produce less noise and vibrations. According to their material and type of operating, self-lubricating sliding bearings could operate with oil (grease) in its own material structure or even without any amount of lubricant. Besides numerical analysis and calculations, at Faculty of Mechanical Engineering, University of Belgrade numerous experimental investigations of those bearings have been conducted, regarding own laboratory with test rig. This paper presents only selected results of those experiments, where portable DAQ acquisition with LabVIEW software tool was applied.
C3  - Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014)
T1  - Experimental Investigation of Self-Lubricating Sliding Bearings
EP  - 81
SP  - 75
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7584
ER  - 

@conference{
author = "Marinković, Aleksandar and Stanković, Miloš and Milović, Ljubica and Lazović, Tatjana and Marković, Svetislav",
year = "2014",
abstract = "Self-lubricating sliding bearings are widely used in numerous industrial applications, primary regarding their specific lubrication mechanism. This lubrication mechanism is a main advantage compared with classical sliding bearings, where their production is not so complicate and makes lower price. This kind of bearing could be simple to assembly and in operating produce less noise and vibrations. According to their material and type of operating, self-lubricating sliding bearings could operate with oil (grease) in its own material structure or even without any amount of lubricant. Besides numerical analysis and calculations, at Faculty of Mechanical Engineering, University of Belgrade numerous experimental investigations of those bearings have been conducted, regarding own laboratory with test rig. This paper presents only selected results of those experiments, where portable DAQ acquisition with LabVIEW software tool was applied.",
journal = "Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014)",
title = "Experimental Investigation of Self-Lubricating Sliding Bearings",
pages = "81-75",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7584"
}

Marinković, A., Stanković, M., Milović, L., Lazović, T.,& Marković, S.. (2014). Experimental Investigation of Self-Lubricating Sliding Bearings. in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014), 75-81.
https://hdl.handle.net/21.15107/rcub_machinery_7584

Marinković A, Stanković M, Milović L, Lazović T, Marković S. Experimental Investigation of Self-Lubricating Sliding Bearings. in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014). 2014;:75-81.
https://hdl.handle.net/21.15107/rcub_machinery_7584 .

Marinković, Aleksandar, Stanković, Miloš, Milović, Ljubica, Lazović, Tatjana, Marković, Svetislav, "Experimental Investigation of Self-Lubricating Sliding Bearings" in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014) (2014):75-81,
https://hdl.handle.net/21.15107/rcub_machinery_7584 .

TY  - CONF
AU  - Milović, Ljubica
AU  - Aleksić, Vujadin
AU  - Marinković, Aleksandar
AU  - Lazović, Tatjana
AU  - Stanković, Miloš
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7585
AB  - Behavior of welded joint regions (parent material, weld metal and heat-affected zone) in the presence of crack is presented. Specimens were made of high-strength low-alloy steel and were tested at -40°C. Diagrams load versus crack opening displacement, resistance curves and J versus crack extension are analyzed.
C3  - Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014)
T1  - Experimental j-integral Determination of Different Weldments Region at Low Temperature
EP  - 95
SP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7585
ER  - 

@conference{
author = "Milović, Ljubica and Aleksić, Vujadin and Marinković, Aleksandar and Lazović, Tatjana and Stanković, Miloš",
year = "2014",
abstract = "Behavior of welded joint regions (parent material, weld metal and heat-affected zone) in the presence of crack is presented. Specimens were made of high-strength low-alloy steel and were tested at -40°C. Diagrams load versus crack opening displacement, resistance curves and J versus crack extension are analyzed.",
journal = "Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014)",
title = "Experimental j-integral Determination of Different Weldments Region at Low Temperature",
pages = "95-90",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7585"
}

Milović, L., Aleksić, V., Marinković, A., Lazović, T.,& Stanković, M.. (2014). Experimental j-integral Determination of Different Weldments Region at Low Temperature. in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014), 90-95.
https://hdl.handle.net/21.15107/rcub_machinery_7585

Milović L, Aleksić V, Marinković A, Lazović T, Stanković M. Experimental j-integral Determination of Different Weldments Region at Low Temperature. in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014). 2014;:90-95.
https://hdl.handle.net/21.15107/rcub_machinery_7585 .

Milović, Ljubica, Aleksić, Vujadin, Marinković, Aleksandar, Lazović, Tatjana, Stanković, Miloš, "Experimental j-integral Determination of Different Weldments Region at Low Temperature" in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014) (2014):90-95,
https://hdl.handle.net/21.15107/rcub_machinery_7585 .

TY  - CONF
AU  - Stanković, Miloš
AU  - Grbović, Aleksandar
AU  - Marinković, Aleksandar
AU  - Milović, Ljubica
AU  - Lazović, Tatjana
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7586
AB  - A prediction of crack propagation is subject of research of many scientists. Understanding crack occurrence and propagation could save lives (i.e. in airplane industry), or at least reduce the costs occurred by unexpected failures and stoppages. In this paper it is provided a brief theoretical background of the crack propagation regarding to stress intensity factor, and simulation of crack propagation through a planar plate made of steel with the middle positioned cylindrical hole, by means of Abaqus software. In addition, it is performed calculation of stress intensity factors with MORFEO, software that could be implemented onto Abaqus.
C3  - Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014)
T1  - Simulation of the Crack Propagation through a Planar Plate with the Middle Positioned Cylindrical Hole
EP  - 149
SP  - 143
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7586
ER  - 

@conference{
author = "Stanković, Miloš and Grbović, Aleksandar and Marinković, Aleksandar and Milović, Ljubica and Lazović, Tatjana",
year = "2014",
abstract = "A prediction of crack propagation is subject of research of many scientists. Understanding crack occurrence and propagation could save lives (i.e. in airplane industry), or at least reduce the costs occurred by unexpected failures and stoppages. In this paper it is provided a brief theoretical background of the crack propagation regarding to stress intensity factor, and simulation of crack propagation through a planar plate made of steel with the middle positioned cylindrical hole, by means of Abaqus software. In addition, it is performed calculation of stress intensity factors with MORFEO, software that could be implemented onto Abaqus.",
journal = "Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014)",
title = "Simulation of the Crack Propagation through a Planar Plate with the Middle Positioned Cylindrical Hole",
pages = "149-143",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7586"
}

Stanković, M., Grbović, A., Marinković, A., Milović, L.,& Lazović, T.. (2014). Simulation of the Crack Propagation through a Planar Plate with the Middle Positioned Cylindrical Hole. in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014), 143-149.
https://hdl.handle.net/21.15107/rcub_machinery_7586

Stanković M, Grbović A, Marinković A, Milović L, Lazović T. Simulation of the Crack Propagation through a Planar Plate with the Middle Positioned Cylindrical Hole. in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014). 2014;:143-149.
https://hdl.handle.net/21.15107/rcub_machinery_7586 .

Stanković, Miloš, Grbović, Aleksandar, Marinković, Aleksandar, Milović, Ljubica, Lazović, Tatjana, "Simulation of the Crack Propagation through a Planar Plate with the Middle Positioned Cylindrical Hole" in Proceedings of the 2nd International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2014) (2014):143-149,
https://hdl.handle.net/21.15107/rcub_machinery_7586 .