Zili Li, Rolf Dollevoet
Wear and RCF
11th. World Congress on Computational Mechanics (WCCM XI)
Location: Barcelona, Spain
3D finite element model, plastic deformation, short pitch corrugation
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In the presence of short pitch corrugation on the wheel-rail contact surface, high frequency wheel-rail contact force is induced together with high level of vibrations and noise. The induced dynamic wheel-rail contact force accelerates the degradation of the components of the wheel-track system, shortening their service life. The resulting noise, which is also known as “roaring rail”, is an annoyance to residents nearby. In previous research, wear, treated to be proportional to the frictional work at the wheel-rail contact, has usually been considered and analysed as the damage mechanism. In this research, the model is further developed to include the elasto-plastic material property of the rail. Plastic deformation, as a damage mechanism for the corrugation will be investigated.