Computer simulation of the compressive failure of porous material through Distinct Lattice Spring Model

Abstract

This paper presents the computer simulation of dynamic failure process of porous material through a discrete numerical method. The motivation of this study is to investigate the influence of porous on the compressive failure of material by using the Distinct Lattice Spring Model (DLSM). Firstly, the basic theory of the DLSM is introduced. Due to its inherit discrete nature, DLSM is more suitable to simulate the fracturing process problems than conventional continuum based methods. Then, the methodology used to represent the porous materials is presented. Following this, details of DLSM modeling on the failure process of the porous material under dynamic loading are provided. Finally, the influence of loading ratio and porous on the final strength of the material are presented and analyzed. It indicates that porous play a significant influence on the dynamic compressive strength of material.