Post Hatfield rolling contact fatigue: the effect of residual stress on contact stress driven crack growth in rail: part 3: further data

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/214776

Title: Post Hatfield rolling contact fatigue: the effect of residual stress on contact stress driven crack growth in rail: part 3: further data
Author(s): Kapoor, A.; Fletcher, D. I.
Abstract: This report continues from previous reports (1, 2, 3) detailing the development of crack growth models for investigating the effect of residual stress and continuously welded rail stress on running surface initiated cracks in railway rail. This report concentrates on the prediction of crack branching direction. The use of two different residual stress distributions highlights the sensitivity of crack growth rate and direction to the residual stress distribution. Predictions are made of the branching direction for initially straight cracks at 30 degrees, 45 degrees and 60 degrees below a rail surface traversed by a driving wheel.
Publication type: Report
Source: NewRail, report WR061106-4
Publication year: 2006
Keyword(s): Contact stress; Crack growth; Residual stress
Publisher: NewRail, Newcastle University
Additional information: The majority of the work reported here was undertaken at the University of Sheffield in 2003-2004, but publication was embargoed until 2006. This issue supersedes earlier versions of the report.