2020 Volume 76 Issue 2 Pages I_359-I_367
The strain space multiple mechanism model idealizes the behavior of granular materials based on a multitude of virtual simple shear mechanisms oriented in arbitrary directions. These mechanisms idealize the internal (or micromechanical) structure of granular materials with induced anisotropy and form a second-order fabric tensor, which relates macroscopic strain to macroscopic stress and has been updated to consider the effect of inherent anisotropy. This paper investigates the inherent anisotropy’s effect on the evolution of induced fabric caused by the change of macroscopic stress/strain. Comparison with Discrete Element Method (DEM) simulation demonstrates that the strain space multiple mechanism model accounting for inherent anisotropy has the potential to capture the essential features in the evolution of an induced fabric in granular materials.
