Analysis of Granular Behavior and Contact Force Distribution of Granules by CL-CA

Abstract

A local rule for the particular type of CA model, e.g., CL-CA model, is developed to predict the behavior of granules during the shear. Several lattice sites of CA are connected as dodecagon polygons to consider the different size of particle and the packing of granules. Computed relocation of disks based on the proposed rule for the uplift problem of the trap-door is found under devastating reduction of computing time and is compared with experimental result in the two-dimensional trap-door test using aluminum rods. Numerical and experimental results demonstrate the validity of the proposed CA model and its local rule. Contact force distribution among particles is also calculated under the local rule and examined through the comparison with DEM simulation.