Journal
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume 75, Issue -, Pages 110-122Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2013.06.003
Keywords
Railhead; Ratchetting; Sub-modelling; Finite element analysis; von-Mises yield criterion
Categories
Funding
- Cooperative Research Centre for Railway Engineering and Technologies [75]
Ask authors/readers for more resources
Insulated rail joints are critical for train safety as they control electrical signalling systems; unfortunately they exhibit excessive ratchetting of the railhead near the endpost insulators. This paper reports a three-dimensional global model of these joints under wheel-rail contact pressure loading and a sub-model examining the ratchetting failures of the railhead. The sub-model employs a non-linear isotropic-kinematic elastic-plastic material model and predicts stress/strain levels in the localised railhead zone adjacent to the endpost which is placed in the air gap between the two rail ends at the insulated rail joint. The equivalent plastic strain plot is utilised to capture the progressive railhead damage adequately. Associated field and laboratory testing results of damage to the railhead material suggest that the simulation results are reasonable. (C) 2013 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available