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 language | English |
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| Title of host publication | Proceedings of the 3rd international conference on railway technology: Research, development and maintenance |
| Editors | J Pombo |
| Place of Publication | Stirlingshire |
| Publisher | Civil-Comp Press |
| Pages | 1-14 |
| Number of pages | 14 |
| ISBN (Print) | 978-1-905088-65-2 |
| DOIs | |
| Publication status | Published - 2016 |
| Event | Railways 2016: 3rd International Conference on Railway Technology: Research, Development and Maintenance - Cagliari, Italy Duration: 5 Apr 2016 → 8 Apr 2016 http://www.civil-comp.com/conf/rw2016/rw2016_flyer.pdf |
Publication series
| Name | |
|---|---|
| Publisher | Civil-Comp Press |
Conference
| Conference | Railways 2016: 3rd International Conference on Railway Technology: Research, Development and Maintenance |
|---|---|
| Country/Territory | Italy |
| City | Cagliari |
| Period | 5/04/16 → 8/04/16 |
| Internet address |
Bibliographical note
Paper 179Keywords
- Conf.proc. > 3 pag