NORMAL CONTACT FORCE ON TWO IDENTICAL SPHERE BY PARTICLE – PARTICLE CONTACT USING DISCRETE ELEMENT METHOD

Abstract

The objective of this contribution is to exist a numerical simulation technique to model the collision of particles in a plane using object oriented procedures. This approach is based on the second law of Newton for the translational motion of each particle in the granular material. This comprises a possession track of all forces acting on each particle at every time-step. The back-ground version of DEM and time integration algorithm are established and executed into C++ code. A simple test is regarding the application of time- integration algorithm by particle-particle interaction for which analytical expression exist. In this paper elastic force due to particle – particle contact and particle – wall contact on identical spherical particles are investigated.