Građevinar, Vol. 73 No. 02., 2021.
Prethodno priopćenje
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
Sažetak
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.
Ključne riječi
railway track; rail defects; finite element method; crack
Hrčak ID:
254254
URI
Datum izdavanja:
7.3.2021.
Posjeta: 945 *