Texture-Dependent Rigid-Plastic Behavior

摘要

A simple starting point for the introduction of the texture (in the form of a fabric tensor) in a continuum rigid-plastic description of the mechanical behavior of granular media is proposed. We focus on the evolution of the fabric and suggest to introduce steric hindrance effects directly on this geometrical quantity. This implicitly defines a flow rule, and is at variance with the standard approach where a flow rule is chosen a priori.