Railway axle design – to be based on fatigue initiation or crack propagation?
Paper i proceeding, 2009

A numerical study is presented where the impact of simultaneous thermal and mechanical loading on a railway wheel tread as imposed by braking and rolling contact is reported. A comparison is made of 2D and 3D finite element simulations of the thermomechanical problem featuring a material model that accounts for thermal expansion and plastic deformations. It is found that 2D simulations give unrealistic predictions of plastic deformations. The 3D simulations demonstrate a significant influence of the thermal loading on the induced tensile stresses also in cases of rather moderate temperature increases.

rolling contact fatigue

thermomechanical analysis

railway wheel tread damage


Roger Lundén

Chalmers, Tillämpad mekanik, Dynamik

Tore V Vernersson

Chalmers, Tillämpad mekanik, Dynamik

Anders Ekberg

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

Proceedings of the 9th International Heavy Haul Conference



Teknisk mekanik