ELASTOPLASTIC INTERFACE MODEL FOR 3D-FRICTIONAL ORTHOTROPIC CONTACT PROBLEMS

The present study deals with the solution of the fully three-dimension al contact/friction problem taking into account microstructural charac teristics of the surfaces. An incremental non-associated hardening fri ction law model analogous to the classical theory of plasticity is use d, Two different non-linear friction functions in the orthogonal. dire ctions are used to account for the orthotropic properties of the conta cting bodies. A frontal solver processing unsymmetric matrices is adop ted. Two numerical examples have been selected to show applicability o f the method proposed.