Energy Approach Towards Stress-Dilatancy Formulation based on Double Slip-Rotation Rate Concept

This paper proposes a new approach for the analysis of shear-induced volume change of granular materials. Following a revisit to the micro-mechanical deformation mechanism and the findings from discrete element method simulations, it is concluded that the double slip-rotation rate mechanism is appropriate for the description of granular materials subjected to shear. The implementation of energy principle with the double slip-rotation rate …