Abstract
This paper provides a method to address one of the most practical point of concern in railways which is damage on the wheel caused by distinct track conditions and thermal loading. It gives the overview of Rolling Contact Fatigue (RCF) and thermal fatigue loading occurring at rail wheels. The paper provides a method for calculating fatigue crack growth and thermal stress induced in railway wheel. They mainly occur as long-term braking on railroads, the generation of stresses and deformations occurandconsequences are the appearance of cracks and flaws on the periphery of wheel, which later results in the fatigue failure. The thermal and fatigue loading on railway wheel is modelled and analysed using ANSYS 14.5 Parametric Design software. Non-uniform meshing is carried outincritical zone in such a way thatfine meshing is done in high stress concentration zone while coarse meshing isapplied in sensitive zones. For the investigation of life-span numerical simulation for the multiple 3D crack growth, ANSYS14.5 is used to create Finite Element Method(FEM) and modelled with CATIA which conducts the stress analysis and regenerates finite element mesh for new crack configurations. The result obtained from the analysis is shown with the plots between various factors affecting the life of railway wheels.
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