Simulation of microscopic compression-tension behavior of cohesive dry powder by applying DEM

Abstract

The microscopic behavior of dry cohesive powders is considered by applying the DEM. Poly-disperse powder is composed by ultrafine (...) smooth spherical particles. Elastic-plastic-dissipative contact model with adhesion is applied to model the normal and tangential contact forces. Influence of contact velocity is consideren in details. Micromechanical compression-tension behavior of powder is simulated by 1000 particles.