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http://dx.doi.org/10.7782/JKSR.2017.20.5.658

Evaluation of Rail Fatigue and Bending Fatigue Considering Concrete Track Condition  

Lee, Soo-hyung (Department of Railway Construction, Graduate School of Railway, Seoul National University of Science & Technology)
Kang, You-song (Department of Railway Construction, Graduate School of Railway, Seoul National University of Science & Technology)
Park, Yong-gul (Department of Railway Construction, Graduate School of Railway, Seoul National University of Science & Technology)
Publication Information
Journal of the Korean Society for Railway / v.20, no.5, 2017 , pp. 658-667 More about this Journal
Abstract
Rail is the main track component, playing the most important role in safe railways. For the sake of safety, it is strictly required to secure reliability against fatigue and destruction of rail. In this paper, by field measurement on concrete track, it is confirmed that the rail surface roughness and rail bending stress are linearly correlated with each other; the bending stress of rail can be presented as a function of train speed, track support stiffness, and rail surface roughness. The fatigue life of rail can be estimated by deriving the S-N curve through the fatigue test.
Keywords
Rail fatigue life; Rail bending stress; Track support stiffness; Rail surface roughness;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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