A detailed study of rough edge crack with worn asperities

A boundary element model which describes the reduced mode II and enhanced mode I stress intensity factors of rough edge crack problem with worn asperities is enforced in this paper. The dilatant boundary conditions (DBC) are assumed to be idealized uniform sawtooth crack surface and e€ective Coulomb sliding law. The boundary conditions of the closed worn edge crack are well described. The resulting COD, CSD and the stress distributions along the interface show the interference of a rough DBC edge crack surface.