Momčilović, Dejan

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  • Momčilović, Dejan (3)
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Author's Bibliography

Development of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering

Atanasovska, Ivana; Momčilović, Dejan; Gavrilovski, Milorad

(Association of Metallurgical Engineers of Serbia AMES, 2018)

TY  - JOUR
AU  - Atanasovska, Ivana
AU  - Momčilović, Dejan
AU  - Gavrilovski, Milorad
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5089
AB  - The developing of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering is described in this paper. The developed tool allows repeated testing of hexagonal steel wire mesh of different dimensions without tool changes and is generally related with the procedure for the determination of tensile strength properties of different wire meshes. The construction of the tool which is related to the aims of the decreased mass consumption and high operation safety is described in detail. Particular attention is focused on the safety component of the tool which ensuring safety testing by preventing slipping of the wire mesh samples during loading. The paper also presents the Finite Element Analysis performed in order to verify the high safety factor of the developed tool. The contact regions with stress concentration behavior are analyzed by non-linear solvers. The obtained results and conclusion about the possible contributions of the developed universal tool for extensively testing of wire meshes for civil engineering are discussed.
PB  - Association of Metallurgical Engineers of Serbia AMES
T2  - Metallurgical and Materials Engineering
T1  - Development of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering
EP  - 122
IS  - 2
SP  - 113
VL  - 24
DO  - 10.30544/365
ER  - 
@article{
author = "Atanasovska, Ivana and Momčilović, Dejan and Gavrilovski, Milorad",
year = "2018",
abstract = "The developing of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering is described in this paper. The developed tool allows repeated testing of hexagonal steel wire mesh of different dimensions without tool changes and is generally related with the procedure for the determination of tensile strength properties of different wire meshes. The construction of the tool which is related to the aims of the decreased mass consumption and high operation safety is described in detail. Particular attention is focused on the safety component of the tool which ensuring safety testing by preventing slipping of the wire mesh samples during loading. The paper also presents the Finite Element Analysis performed in order to verify the high safety factor of the developed tool. The contact regions with stress concentration behavior are analyzed by non-linear solvers. The obtained results and conclusion about the possible contributions of the developed universal tool for extensively testing of wire meshes for civil engineering are discussed.",
publisher = "Association of Metallurgical Engineers of Serbia AMES",
journal = "Metallurgical and Materials Engineering",
title = "Development of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering",
pages = "122-113",
number = "2",
volume = "24",
doi = "10.30544/365"
}
Atanasovska, I., Momčilović, D.,& Gavrilovski, M.. (2018). Development of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering. in Metallurgical and Materials Engineering
Association of Metallurgical Engineers of Serbia AMES., 24(2), 113-122.
https://doi.org/10.30544/365
Atanasovska I, Momčilović D, Gavrilovski M. Development of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering. in Metallurgical and Materials Engineering. 2018;24(2):113-122.
doi:10.30544/365 .
Atanasovska, Ivana, Momčilović, Dejan, Gavrilovski, Milorad, "Development of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering" in Metallurgical and Materials Engineering, 24, no. 2 (2018):113-122,
https://doi.org/10.30544/365 . .
3

Structural Integrity Assessment of Welded Pressure Vessel Produced of HSLA Steel

Milović, Ljubica; Tomaz, Vuherer; Zrilić, Milorad; Momčilović, Dejan; Jaković, Dragan

(Journal Iron Steel Research Editorial Board, Beijing, 2011)

TY  - JOUR
AU  - Milović, Ljubica
AU  - Tomaz, Vuherer
AU  - Zrilić, Milorad
AU  - Momčilović, Dejan
AU  - Jaković, Dragan
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1885
AB  - Welded joint is a critical region of a welded structure. The operational safety of welded pressure equipment mostly depends on the behaviour of loaded weldments. Safety of welded structure is dependent on the properties of welded joint as whole and of its constituents (parent metal, heat affected zone and weld metal). In this paper the behaviour of welded joint cracked constituents is considered. Structural integrity assessment procedure is applied to welded pressure vessel produced of high-strength low-alloyed steel, operating at -40 degrees C, comparing crack driving force and material crack resistance, using path-independent contour J-integral as fracture mechanics parameter. The comparison of crack driving force, expressed by J-integral and material resistant curve, J-R curve, provide the possibility to determine the extent of the stable crack as well as the critical crack size for its final fast propagation and also to assess the structural integrity of a cracked pressure vessel.
PB  - Journal Iron Steel Research  Editorial Board, Beijing
T2  - Journal of Iron and Steel Research International
T1  - Structural Integrity Assessment of Welded Pressure Vessel Produced of HSLA Steel
EP  - 892
SP  - 888
VL  - 18
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1885
ER  - 
@article{
author = "Milović, Ljubica and Tomaz, Vuherer and Zrilić, Milorad and Momčilović, Dejan and Jaković, Dragan",
year = "2011",
abstract = "Welded joint is a critical region of a welded structure. The operational safety of welded pressure equipment mostly depends on the behaviour of loaded weldments. Safety of welded structure is dependent on the properties of welded joint as whole and of its constituents (parent metal, heat affected zone and weld metal). In this paper the behaviour of welded joint cracked constituents is considered. Structural integrity assessment procedure is applied to welded pressure vessel produced of high-strength low-alloyed steel, operating at -40 degrees C, comparing crack driving force and material crack resistance, using path-independent contour J-integral as fracture mechanics parameter. The comparison of crack driving force, expressed by J-integral and material resistant curve, J-R curve, provide the possibility to determine the extent of the stable crack as well as the critical crack size for its final fast propagation and also to assess the structural integrity of a cracked pressure vessel.",
publisher = "Journal Iron Steel Research  Editorial Board, Beijing",
journal = "Journal of Iron and Steel Research International",
title = "Structural Integrity Assessment of Welded Pressure Vessel Produced of HSLA Steel",
pages = "892-888",
volume = "18",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1885"
}
Milović, L., Tomaz, V., Zrilić, M., Momčilović, D.,& Jaković, D.. (2011). Structural Integrity Assessment of Welded Pressure Vessel Produced of HSLA Steel. in Journal of Iron and Steel Research International
Journal Iron Steel Research  Editorial Board, Beijing., 18, 888-892.
https://hdl.handle.net/21.15107/rcub_technorep_1885
Milović L, Tomaz V, Zrilić M, Momčilović D, Jaković D. Structural Integrity Assessment of Welded Pressure Vessel Produced of HSLA Steel. in Journal of Iron and Steel Research International. 2011;18:888-892.
https://hdl.handle.net/21.15107/rcub_technorep_1885 .
Milović, Ljubica, Tomaz, Vuherer, Zrilić, Milorad, Momčilović, Dejan, Jaković, Dragan, "Structural Integrity Assessment of Welded Pressure Vessel Produced of HSLA Steel" in Journal of Iron and Steel Research International, 18 (2011):888-892,
https://hdl.handle.net/21.15107/rcub_technorep_1885 .
7

Failure analysis of chain bracket

Momčilović, Dejan; Hut, Nenad; Milović, Ljubica; Atanasovska, Ivana

(Society for Structural Integrity and Life, Institute for Material Testing, 2011)

TY  - JOUR
AU  - Momčilović, Dejan
AU  - Hut, Nenad
AU  - Milović, Ljubica
AU  - Atanasovska, Ivana
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1844
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.
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.
PB  - Society for Structural Integrity and Life, Institute for Material Testing
T2  - Integritet i vek konstrukcija
T1  - Failure analysis of chain bracket
T1  - Analiza loma spojnice lanca
EP  - 126
IS  - 2
SP  - 123
VL  - 11
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1844
ER  - 
@article{
author = "Momčilović, Dejan and Hut, Nenad and Milović, Ljubica and Atanasovska, Ivana",
year = "2011",
abstract = "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., 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.",
publisher = "Society for Structural Integrity and Life, Institute for Material Testing",
journal = "Integritet i vek konstrukcija",
title = "Failure analysis of chain bracket, Analiza loma spojnice lanca",
pages = "126-123",
number = "2",
volume = "11",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1844"
}
Momčilović, D., Hut, N., Milović, L.,& Atanasovska, I.. (2011). Failure analysis of chain bracket. in Integritet i vek konstrukcija
Society for Structural Integrity and Life, Institute for Material Testing., 11(2), 123-126.
https://hdl.handle.net/21.15107/rcub_technorep_1844
Momčilović D, Hut N, Milović L, Atanasovska I. Failure analysis of chain bracket. in Integritet i vek konstrukcija. 2011;11(2):123-126.
https://hdl.handle.net/21.15107/rcub_technorep_1844 .
Momčilović, Dejan, Hut, Nenad, Milović, Ljubica, Atanasovska, Ivana, "Failure analysis of chain bracket" in Integritet i vek konstrukcija, 11, no. 2 (2011):123-126,
https://hdl.handle.net/21.15107/rcub_technorep_1844 .
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