Abstract
The influence of slip between inclusion and matrix on the plastic deformation of an inhomogeneous material with inclusions was investigated. A plane model of inhomogeneous material with a thin boundary layer between the elliptic inclusions and the matrix was adopted, where the material was assumed to be rigid-plastic. The boundary slip layer was modeled by assuming lower yield stress for the boundary layer than those of the inclusion and the matrix. The rigid-plastic finite element method was used for the numerical calculation under the plane strain condition. The effects of the aspect ratio of the inclusion, the yield stress of the boundary layer and the volume fraction of the inclusion were studied. The patterns of the shear bands produced along the boundary layer and the mean flow stress of the inhomogeneous material were also discussed.
