Railway axle design – to be based on fatigue initiation or crack propagation?
Paper in proceedings, 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

Author

Roger Lundén

Dynamics

Tore V Vernersson

Dynamics

Anders Ekberg

Chalmers, Applied Mechanics, Material and Computational Mechanics

Proceedings of the 9th International Heavy Haul Conference

509-517

Subject Categories

Applied Mechanics

More information

Created

10/7/2017