A Rational Approach to Stress-Dilatancy Modelling Using an Explicit Micromechanical Formulation

This paper presents a theoretical approach for deriving a stress-dilatancy formulation for granular materials. We first revisit Rowe’s stress-dilatancy relation by investigating two-dimensional granular assemblies with various regular particle arrangements. It is found that the energy ratio during deformation varies with particle arrangements (or fabric) with its minimum value corresponding to a particular deformation state. As such, Rowe’s …