On fatigue crack growth of railway rails under mixed-mode loading conditions

Masoudi Nejad, Reza, Liu, Zhiliang, and Wheatley, Greg (2021) On fatigue crack growth of railway rails under mixed-mode loading conditions. In: Proceedings of the 6th International Conference on Science and Technology. From: 6th International Conference on Science and Technology: with sustainable development approach, 10 March 2021, Tehran, Iran.

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Abstract

The aim of this paper is to investigate the stress intensity factors and fatigue crack growth path in railway rails under the influence of mixed-mode loading conditions. In order to achieve the expected results, mechanical properties tests were carried out on railway rail specimens and then fatigue crack growth tests were performed. Due to the importance of the crack growth problem in railway rail specimens, having geometric and physical parameters of the problem, the goal is to achieve the exact path of fatigue crack growth in rail specimens. Fatigue crack growth tests were performed using standard CTS specimens from railway rail. Stress intensity factors for different loading modes were determined using the boundary element method. According to the results, it can be concluded that the mixed-mode loading conditions have a significant effect on the fatigue crack growth.

Item ID: 67614
Item Type: Conference Item (Research - E1)
Keywords: Mixed-mode loading; Fracture mechanics; Fatigue life; Fatigue crack growth path
Date Deposited: 27 Jul 2021 02:09
FoR Codes: 40 ENGINEERING > 4017 Mechanical engineering > 401799 Mechanical engineering not elsewhere classified @ 100%
SEO Codes: 27 TRANSPORT > 2703 Ground transport > 270303 Heavy rail infrastructure and networks @ 100%
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