Abstract
Existing methods for estimation of subsurface cyclic strain accumulation (ratchetting) and residual stresses in rolling contact are limited in applicability to a few cases of practical interest. Finite element solutions, for example, are potentially accurate but may only be employed for a small number of cycles for selected loading conditions and materials. This study concentrates on the estimation of cyclic plastic flow in rolling contact and associated residual stress development within the context of a set of simple constraints representative of plane strain line contact of cylinders. A reasonably sophisticated non-linear material constitutive law is employed. The behavior of two different rail steels is examined over a wide range of rolling contact conditions.
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