VGCM3D - a 3D rigid particle model for rock fracture following the voronoi tessellation of the grain structure: formulation and validation

Abstract

Detailed particle models by taking into account the material grain structure explicitly consider the material randomness, including a size limiter for damage localization. A VGMC3D contact model is presented that considers the polyhedral particle shape in an approximate way. The VGCM3D flexible contact model is validated against known experimental data on a granite rock, namely triaxial tests and Brazilian tests