The Proceedings of International Symposium on Seed-up and Service Technology for Railway and Maglev Systems : STECH
Online ISSN : 2424-3167
2009
Session ID : 357828
Conference information
357828 EFFECT OF TRAFFIC ON CRACK INITIATION IN RAILS(Safety,Technical Session)
Gordana VasicFrancis J. FranklinDavid I. FletcherAjay Kapoor
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
This paper describes a method to predict wear rates and time until fatigue crack initiation. A computer simulation of ratcheting wear is used to model the accumulation of plastic shear deformation in the rail and predict the wear rate, based on wheel-rail contact conditions. Contact data for two types of high speed trains at two sites on the East Coast Mainline, U.K., have been obtained from multi-body simulations of train-track interaction. Together with fracture mechanics models for larger cracks, these models provide guidelines for rail grinding in order to optimize rail life and safety.
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© 2009 The Japan Society of Mechanical Engineers
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