The suitability of using accumulated plastic strain to assess the damage at the rail-wheel interfaces

Wickramasinghe, Isuru Udara, Hargreaves, Douglas, & De Pellegrin, Dennis (2012) The suitability of using accumulated plastic strain to assess the damage at the rail-wheel interfaces. In Pombo, Joao (Ed.) Proceedings of the First International Conference on Railway Technology: Research, Development and Maintenance, Civil-Comp Press, Las Palmas de Gran Canaria, Spain.

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Abstract

Numerous Abaqus [1] finite element analyses have been carried out using various plasticity models to investigate the effect of friction force on the rail head in relation to both the development of the accumulated plastic strain (PEEQ) and the changes in the depth of PEEQ distribution in the wheel-rail contact. The normal force distribution on the rail head was assumed to be Hertzian. The tangential force was implemented as a fraction of the normal force in the subroutine. Each analysis was carried out for a single pass and the effect of various friction coefficient values has been observed.

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ID Code: 61673
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: plastic equivalent strain, finite element modelling, wheel-rail contact, pressure load, material plasticity, Abaqus simulations, Hertzian contact theory
DOI: 10.4203/ccp.98.95
ISBN: 9781905088539
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Civil-Comp Press
Deposited On: 04 Aug 2013 23:22
Last Modified: 07 Aug 2013 04:21

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