Wheel tread damage – a numerical study of railway wheel tread plasticity under thermomechanical loading
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.

railway wheel tread damage

thermomechanical analysis

rolling contact fatigue

Author

Tore V Vernersson

Dynamics

Elena Kabo

Chalmers, Applied Mechanics, Material and Computational Mechanics

Anders Ekberg

Chalmers, Applied Mechanics, Material and Computational Mechanics

Håkan Hansson

Proceedings of the 9th International Heavy Haul Conference

Vol. 1 465-472

Subject Categories

Reliability and Maintenance

More information

Created

10/7/2017