ELASTIC AND SLIP COMPONENTS OF THEDEFORMATION OF SAND

Abstract

The significance of a separation into elastic and slip components is considered for the case of particulate material. Tests on sand, including a variety of stress paths in a triaxial and a plane strain apparatus, indicate that for a majority of first-loading paths the total strains are closely given by the slip strains alone. The stress dilatancy theory is seen to provide a simple and accurate flow rule for predicting the slip strains.