Numerical analysis of rail surface crack propagation under cyclic rolling-sliding contact loads

Y Ma, VL Markine, AA Mashal

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

In this paper, a numerical procedure for surface crack propagation analysis is proposed. The complex stress-strain state for wheel-rail (W/R) contact is analysed by means of the sub-modelling approach together with the transient dynamic W/R rolling contact simulation. For that purpose, a three-dimensional semi-elliptical surface crack model is developed and utilized to analyse the stress/strain field around the crack tip. The validity of this procedure has been successfully confirmed using a comparison of simulation results and cutting boundary verification. The fracture parameters that are commonly used to characterize the crack propagation tendency are calculated with the domain integral approach. The influence of the crack geometry on the variation of the fracture parameters is assessed. Based on the results obtained, it was concluded that the proposed procedure is effective and efficient enough to perform the crack propagation analysis.
Original languageEnglish
Title of host publicationProceedings of the 3rd international conference on railway technology: Research, development and maintenance
EditorsJ Pombo
Place of PublicationStirlingshire
PublisherCivil-Comp Press
Pages1-14
Number of pages14
ISBN (Print)978-1-905088-65-2
DOIs
Publication statusPublished - 2016
EventRailways 2016: 3rd International Conference on Railway Technology: Research, Development and Maintenance - Cagliari, Italy
Duration: 5 Apr 20168 Apr 2016
http://www.civil-comp.com/conf/rw2016/rw2016_flyer.pdf

Publication series

Name
PublisherCivil-Comp Press

Conference

ConferenceRailways 2016: 3rd International Conference on Railway Technology: Research, Development and Maintenance
CountryItaly
City Cagliari
Period5/04/168/04/16
Internet address

Keywords

  • Conf.proc. > 3 pag

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