An approximate algorithm for elastic-plastic two-dimensional rolling/sliding contact

In this paper, we introduce an approximate algorithm for two-dimensional elastic-plastic rolling/sliding line contact which admits arbitrary forms of kinematic hardening models for nonproportional cyclic plasticity. The new hybrid scheme combines attractive features of the McDowell and Moyar [1,2] and Sehitoglu and Jiang [3,4] approaches, enabling prediction of subsurface cyclic plasticity and residual stresses for loading conditions ranging from small to large cyclic plastic-strain ranges. The approach is compared with finite element calculations of residual stresses and subsurface cyclic plasticity for both high and low strength alloys. A comparison is presented with the previous McDowell-Moyar algorithm in terms of the prediction of subsurface residual stresses within the half space over a wide range of loading conditions. (C) 1997 Elsevier Science S.A.