A simple model to estimate yield stress and hardness variation in railheads

Kourousis, K, Athukorala, A and De Pellegrin, D 2018, 'A simple model to estimate yield stress and hardness variation in railheads', Institution of Mechanical Engineers. Proceedings. Part F: Journal of Rail and Rapid Transit, vol. 232, no. 4, pp. 1193-1196.


Document type: Journal Article
Collection: Journal Articles

Title A simple model to estimate yield stress and hardness variation in railheads
Author(s) Kourousis, K
Athukorala, A
De Pellegrin, D
Year 2018
Journal name Institution of Mechanical Engineers. Proceedings. Part F: Journal of Rail and Rapid Transit
Volume number 232
Issue number 4
Start page 1193
End page 1196
Total pages 4
Publisher Sage Publications Ltd.
Abstract This technical note presents a macroscopic model capable to estimate the variation of hardness and yield stress at different railhead distances (depths) from the running surface. Published data, including results reported in past work by the authors, have been utilised to calibrate and test the validity of the model. From this preliminary investigation it was found that the model can predict accurately the measured hardness and yield stress values, as well as represent the variation profile exhibited in the examined railhead material. This model, subject to further validation, has the potential to be used in practical applications.
Subject Solid Mechanics
Rail Transportation and Freight Services
Keyword(s) Rail
steel
hardness
yield stress
isotropic hardening
macroscopic model
DOI - identifier 10.1177/0954409717710557
Copyright notice © IMechE 2017
ISSN 2041-3017
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