Rail wheel is the major part which helps move a train at high speeds and increased axle loads at wheel contact forces. These leads to major rim damage from wear to fatigue. This process of wear, fatigue causes fractures in wheels or tread surface material. These are the major causes for damage to the rail suspensions and derailment of the rail. The project focuses on subsurface propagation analysis which is based on the critical plane approach. Firstly, we design a geometric model of a rail wheel in AUTOCAD software. It is made of steel R-16 and R-19 steel and tested by applied loads and boundary conditions on wheel &Axle by using the ANSYS 16.0.Now solving the model to obtain mechanical loading and thermal loading.