A NUMERICAL METHOD FOR COUPLING OF 3-D ELASTOPLASTIC AND ELASTO-VISCOPLASTIC FINITE ELEMENTS WITH ELASTIC BOUNDARY ELEMENTS

The paper deals with following three problems: (1) Some numerical schemes in coupling FEM and BEM: including sub-structure technique, symmetrizing boundary element equation's coefficient matrix, and treatment of traction discontinuity, (2) Coupling of elastoplastic finite elements to elastic boundary elements, (3) Coupling of elasto-viscoplastic finite elements to elastic boundary elements.