A two dimensional elasto-plastic finite element program taking into account contact between crack surfaces is developed in order to analyze subsurface cracking in rolling contact. But the friction between upper and lower surface of the crack is not ...
A two dimensional elasto-plastic finite element program taking into account contact between crack surfaces is developed in order to analyze subsurface cracking in rolling contact. But the friction between upper and lower surface of the crack is not considered. Under the assumptions of small deformation and small displacement, the incremental theory of plasticity is used to describe plastic deformation. J-integral is computed as the applied Hertzian load slides over the surface with friction. J-integral is correlated with wear rate of the rail. The propagation rate of the right tip of the subsurface crack is fast by 45% than that of the left side.