Preliminary communication

https://doi.org/10.14256/JCE.2860.2019

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

Hrčak ID:

254254

URI

https://hrcak.srce.hr/254254

Publication date:

7.3.2021.

Article data in other languages: croatian

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