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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Markine, Valeri
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (3/3 displayed)
- 2017Analysis of the effect of repair welding/grinding on the performance of railway crossings using field measurements and finite element modelingcitations
- 2016Numerical analysis of rail surface crack propagation under cyclic rolling-sliding contact loadscitations
- 2016Numerical procedure for fatigue life prediction for railway turnout crossings using explicit finite element approachcitations
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document
Numerical analysis of rail surface crack propagation under cyclic rolling-sliding contact loads
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.<br/>