Modeling yield properties of compacted powder using a multi-particle finite element model with cohesive contacts

摘要

The multi- particle finite element method (MPFEM) was used to simulate the yield properties of compacted powders with cohesive contacts. A suitable representative volume element (RVE) of monodisperse, spherical, de formable particles was created to be implemented into a commercially available finite element code. New efficient periodic boundary conditions were proposed to compute representative properties of the volume at limited computational costs. A contact model was introduced, which includes repulsive forces, friction forces and cohesion forces. As a result, the proposed model is capable of considering tensile strength in a MPFEM setting, which was not attainable in related published work.