Abstract
An elastic-plastic analysis of railway wheel life prediction is made for obtaining the residual stresses due to braking and alternating rolling contact stresses between the wheel and rail. These stresses are then used to obtain approximate crack border stress intensity factors K I, K II, and K III such that an equivalent combined load stress intensity factor can be derived by application of the strain energy density criterion. By including the effect of both the normal and shear action on the locomotive wheel, the results are indicative of those observed in service. While cracks may nucleate from thermal fatigue, it suffices to consider the cyclic load due to rolling contact for estimating the fatigue lives of locomotoive wheels.
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