Numerical simulation of near surface rail cracks subject to thermal contact stress

Abstract

Boundary element modelling was conducted to investigate rail cracks subject to combined thermal and contact loading such as occurs in 'stud' or 'squat type' defects in which white etching layer lies above shallow cracks formed without evidence of plastic flow. An embedded crack at 0.5. mm below the rail surface was modelled, revealing a thermal mechanism of crack opening. Stress intensity values for a range of contact temperatures were calculated. © 2013 Elsevier B.V.

Metadata

Item Type:	Article
Authors/Creators:	Fletcher, D.I.
Copyright, Publisher and Additional Information:	© 2013 Elsevier. This is an author produced version of a paper subsequently published in Wear. Uploaded in accordance with the publisher's self-archiving policy. Article available under the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/)
Keywords:	Rolling contact fatigue; Thermal effects; Steel; Rail-wheel tribology; Boundary element modelling
Dates:	Published: 15 June 2014
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	18 Aug 2015 09:13
Last Modified:	11 Mar 2018 11:17
Published Version:	http://dx.doi.org/10.1016/j.wear.2013.11.021
Status:	Published
Publisher:	Elsevier
Refereed:	Yes
Identification Number:	10.1016/j.wear.2013.11.021
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:88834

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Numerical simulation of near surface rail cracks subject to thermal contact stress

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