TY  - JOUR
AU  - Popović, Zdenka
AU  - Brajović, Ljiljana
AU  - Lazarević, Luka
AU  - Milosavljević, Leposava
PY  - 2014
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/635
AB  - The rail defects due to rolling contact fatigue represent serious safety hazard for rail traffic all around the world. That hazard is more distinct on railways without adequate maintenance strategy, with the increase of wheel/rail contact stresses and with decreasing wear of rail steel. This paper analyses the example of sporadically conducted maintenance and its negative consequence -the appearance of head checking (HC) rail defect on the Serbian Railways. The research of the HC defects was performed by using the visual inspection of rails in service and eddy current testing in the laboratory. The paper points out the importance of early detection of the HC rail defects for the effective defects management of rails in service. It researches the real limits of non-destructive methods for detecting HC defects in track. Combining several non-destructive testing methods is recommended for efficient rail inspection.
PB  - Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
T2  - Tehnički vjesnik / Technical Gazette
T1  - Rail defects head checking on the Serbian railways
EP  - 153
IS  - 1
SP  - 147
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_grafar_635
ER  - 

@article{
author = "Popović, Zdenka and Brajović, Ljiljana and Lazarević, Luka and Milosavljević, Leposava",
year = "2014",
abstract = "The rail defects due to rolling contact fatigue represent serious safety hazard for rail traffic all around the world. That hazard is more distinct on railways without adequate maintenance strategy, with the increase of wheel/rail contact stresses and with decreasing wear of rail steel. This paper analyses the example of sporadically conducted maintenance and its negative consequence -the appearance of head checking (HC) rail defect on the Serbian Railways. The research of the HC defects was performed by using the visual inspection of rails in service and eddy current testing in the laboratory. The paper points out the importance of early detection of the HC rail defects for the effective defects management of rails in service. It researches the real limits of non-destructive methods for detecting HC defects in track. Combining several non-destructive testing methods is recommended for efficient rail inspection.",
publisher = "Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek",
journal = "Tehnički vjesnik / Technical Gazette",
title = "Rail defects head checking on the Serbian railways",
pages = "153-147",
number = "1",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_grafar_635"
}

Popović, Z., Brajović, L., Lazarević, L.,& Milosavljević, L.. (2014). Rail defects head checking on the Serbian railways. in Tehnički vjesnik / Technical Gazette
Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek., 21(1), 147-153.
https://hdl.handle.net/21.15107/rcub_grafar_635

Popović Z, Brajović L, Lazarević L, Milosavljević L. Rail defects head checking on the Serbian railways. in Tehnički vjesnik / Technical Gazette. 2014;21(1):147-153.
https://hdl.handle.net/21.15107/rcub_grafar_635 .

Popović, Zdenka, Brajović, Ljiljana, Lazarević, Luka, Milosavljević, Leposava, "Rail defects head checking on the Serbian railways" in Tehnički vjesnik / Technical Gazette, 21, no. 1 (2014):147-153,
https://hdl.handle.net/21.15107/rcub_grafar_635 .

TY  - JOUR
AU  - Milosavljević, Leposava
AU  - Popović, Zdenka
AU  - Lazarević, Luka
PY  - 2012
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/450
AB  - Railway track stiffness is a basic parameter of track design which influences the bearing capacity, the dynamic behavior of passing vehicles, track geometry quality and the life of track components. In this paper track stiffness is treated from the point of view of the vertical track geometry deterioration modeling. In most of the models, the vertical geometry deterioration is considered to be a function of the number of loading cycles and/or a function of the magnitude of the loading. Deterioration should also be a function of the properties of the track superstructure and substructure, so, the track stiffness should be an indispensable part of those models. The aim of this study is to analyze the vertical track stiffness and its influence on geometry deterioration, and to make a comparative analysis between deterioration models that directly or indirectly include the effect of the vertical track stiffness.
AB  - Krutost šinske podloge je osnovni parametar konstrukcije gornjeg i donjeg stroja železničke pruge koji utiče na nosivost, dinamičko ponašanje vozila, kvalitet geometrije koloseka i vek trajanja elemenata konstrukcije. U radu se krutost šinske podloge razmatra sa aspekta modeliranja propadanja vertikalne geometrije koloseka. U većini modela, propadanje vertikalne geometrije koloseka je funkcija broja ciklusa opterećenja i/ili funkcija intenziteta opterećenja. Pored toga, propadanje je funkcija karakteristika konstrukcije gornjeg i donjeg stroja, tako da krutost šinske podloge treba da bude neizostavni deo tih modela. Cilj istraživanja je analiza krutosti šinske podloge i njenog uticaja na propadanje geometrije, kao i komparativna analiza modela propadanja koji na direktan ili indirektan način uključuju uticaj vertikalne krutosti.
PB  - Univerzitet u Nišu, Niš
T2  - Facta universitatis - series: Mechanical Engineering
T1  - Track stiffness and the vertical track geometry deterioration modeling
T1  - Krutost šinske podloge i modeliranje propadanja vertikalne geometrije koloseka
EP  - 162
IS  - 2
SP  - 157
VL  - 10
UR  - https://hdl.handle.net/21.15107/rcub_grafar_450
ER  - 

@article{
author = "Milosavljević, Leposava and Popović, Zdenka and Lazarević, Luka",
year = "2012",
abstract = "Railway track stiffness is a basic parameter of track design which influences the bearing capacity, the dynamic behavior of passing vehicles, track geometry quality and the life of track components. In this paper track stiffness is treated from the point of view of the vertical track geometry deterioration modeling. In most of the models, the vertical geometry deterioration is considered to be a function of the number of loading cycles and/or a function of the magnitude of the loading. Deterioration should also be a function of the properties of the track superstructure and substructure, so, the track stiffness should be an indispensable part of those models. The aim of this study is to analyze the vertical track stiffness and its influence on geometry deterioration, and to make a comparative analysis between deterioration models that directly or indirectly include the effect of the vertical track stiffness., Krutost šinske podloge je osnovni parametar konstrukcije gornjeg i donjeg stroja železničke pruge koji utiče na nosivost, dinamičko ponašanje vozila, kvalitet geometrije koloseka i vek trajanja elemenata konstrukcije. U radu se krutost šinske podloge razmatra sa aspekta modeliranja propadanja vertikalne geometrije koloseka. U većini modela, propadanje vertikalne geometrije koloseka je funkcija broja ciklusa opterećenja i/ili funkcija intenziteta opterećenja. Pored toga, propadanje je funkcija karakteristika konstrukcije gornjeg i donjeg stroja, tako da krutost šinske podloge treba da bude neizostavni deo tih modela. Cilj istraživanja je analiza krutosti šinske podloge i njenog uticaja na propadanje geometrije, kao i komparativna analiza modela propadanja koji na direktan ili indirektan način uključuju uticaj vertikalne krutosti.",
publisher = "Univerzitet u Nišu, Niš",
journal = "Facta universitatis - series: Mechanical Engineering",
title = "Track stiffness and the vertical track geometry deterioration modeling, Krutost šinske podloge i modeliranje propadanja vertikalne geometrije koloseka",
pages = "162-157",
number = "2",
volume = "10",
url = "https://hdl.handle.net/21.15107/rcub_grafar_450"
}

Milosavljević, L., Popović, Z.,& Lazarević, L.. (2012). Track stiffness and the vertical track geometry deterioration modeling. in Facta universitatis - series: Mechanical Engineering
Univerzitet u Nišu, Niš., 10(2), 157-162.
https://hdl.handle.net/21.15107/rcub_grafar_450

Milosavljević L, Popović Z, Lazarević L. Track stiffness and the vertical track geometry deterioration modeling. in Facta universitatis - series: Mechanical Engineering. 2012;10(2):157-162.
https://hdl.handle.net/21.15107/rcub_grafar_450 .

Milosavljević, Leposava, Popović, Zdenka, Lazarević, Luka, "Track stiffness and the vertical track geometry deterioration modeling" in Facta universitatis - series: Mechanical Engineering, 10, no. 2 (2012):157-162,
https://hdl.handle.net/21.15107/rcub_grafar_450 .