Homogenization of granular material modeled by a three-dimensional Discrete Element Method
نویسندگان
چکیده
A homogenization strategy for granular materials is presented and applied to a three-dimensional Discrete Element Method (DEM), that uses superellipsoids as particles. Macroscopic quantities are derived from the microscopic quantities resulting from a DEM simulation by averaging over representative volume elements (RVEs). The implementation of a RVE is described in detail regarding the definition and discretization of the RVE boundary. The homogenization strategy is validated by DEM simulations of compression and shear tests of cohesionless granular assemblies. Finally an elasto-plastic material is fit to the resulting stress-strain curves.
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