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RESEARCH PAPERS

Growth of the Shell/Transverse Defect in Rails

[+] Author and Article Information
Maria Min-Hui Yu, L. M. Keer

Department of Civil Engineering, Northwestern University, Evanston, IL 60208

J. Tribol 111(4), 648-654 (Oct 01, 1989) (7 pages) doi:10.1115/1.3261990 History: Received November 29, 1988; Online October 29, 2009

Abstract

An approximate analysis of the shell/transverse defect growth in steel rails during use is presented. A general solution for a single subsurface crack is presented first. A simpler approach, which considers the transverse defect alone, is examined as well. Residual stresses are included by introducing their stress distributions mechanically. A proposed mixed-mode loading growth law is used for fatigue life calculations and the crack length versus life curves are obtained. The life of the shell/transverse defect is found to be much shorter than that of the single transverse defect.

Copyright © 1989 by ASME
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