Computer Generation of Sphere Packing for Discrete Element Analysis in LS-DYNA

The constructive algorithms for sphere packing are based on the pure geometrical computation. They are very efficient and robust for building very large sphere packings with millions of spheres in a few minutes. A constructive algorithm has been developed in LS-DYNA for arbitrary 3D geometries with the size distribution control. The brief introduction of the algorithm is presented in this paper. The procedures and some generated sphere packings are also presented to demonstrate its application for the discrete element analysis by using LS- DYNA.