An effective BE algorithm for 3D elastoplastic frictional contact problems

This paper is concerned with an effective boundary element algorithm for the elasto-plastic analysis of three-dimensional frictional contact problems using a quadratic boundary element formulation in the framework of small strains and small displacements. The contact conditions are used to unite the different system of equations for each body in contact. Several types of contact interface conditions are covered including infinite friction, frictionless and Coulomb friction. In order to include plastic deformation, the initial stain formulation and von Mises yield criterion are employed. The proposed algorithm is applied to the elasto-plastic analysis of the frictionless rigid punch, a large plate with a rigid. circular, cylindrical inclusion under the increasing load and the frictional punch contact problem. (C) 2003 Elsevier Ltd. All rights reserved.