Discrete Element Simulations and Experiments on the Deformation of Cohesive Powders in a bi-axial Box

摘要

We compare element test experiments and simulations on the deformation of frictional,cohesive particles in a bi-axial box. We show that computer simulations with the DiscreteElement Method qualitatively reproduce a uniaxial compression element test in the true bi-axialtester. We highlight the effects of friction and polydispersity on our simulations and present thesecond stress response namely the deviatoric stress as a function of the deviatoric strain.