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Published: Građevinar 73 (2021) 2
Paper type: Scientific research paper
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Extending service life of rails in the case of a rail head defect

Dmitry Ovchinnikov, Alexey Bondarenko, Lei Kou, Mykola Sysyn

Abstract

Rails are subjected to the processes of wear, corrosion and contact and bending fatigue during their lifecycle. As a result of these processes, various types of damage and defects are formed in rails. The residual life of rails depends on the size, position, and orientation of defects. Maximum permissible crack-size values are calculated in this paper using the finite element method. The crack plane orientation relative to the contact surface plane is analysed. The dependence of the stress intensity factor on the crack area is established. This allows continued use of defective rails and safe operation on low-activity railways.

Keywords
railway track, rail defects, finite element method, crack

HOW TO CITE THIS ARTICLE:

Ovchinnikov, D., Bondarenko, A., Kou, L., Sysyn, M.: Extending service life of rails in the case of a rail head defect, GRAĐEVINAR, 73 (2021) 2, pp. 119-125, doi: https://doi.org/10.14256/JCE.2860.2019

OR:

Ovchinnikov, D., Bondarenko, A., Kou, L., Sysyn, M. (2021). Extending service life of rails in the case of a rail head defect, GRAĐEVINAR, 73 (2), 119-125, doi: https://doi.org/10.14256/JCE.2860.2019

LICENCE:

Creative Commons License
This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
OvchinnikovDmitrii WEB
Dmitry Ovchinnikov
Samara state University of transport, Russia
Department of Railway and track facilities
BondarenkoAlexe WEBy
Alexey Bondarenko
Samara state University of transport, Russia
Department of Railway and track facilities
Kou Leizhaopian WEB
Lei Kou
TU Dresden, Germany
Institute of Railway Systems and Public Transport
SysynMykola WEB
Mykola Sysyn
TU Dresden, Germany
Institute of Railway Systems and Public Transpor