Modelling Fabric Evolution of Granular Materials Along Proportional Strain Paths

A series of biaxial tests are conducted along proportional strain paths using DEM to investigate the evolution of internal structure in the overall contact network and sub-networks (the strong and weak contact networks). The evolution of fabric in the overall contact network along various strain paths varies with the imposed strain ratio and the resulting stress ratio. Along dilatant strain paths, a unique fabric-stress relation is obtained for …