Collapse Simulation of Bricklaying Arch Based on 3D Distinct Element

Abstract

In order to numerical simulate the transition process from continua to discontinua and even to structural collapse,the collapse of bricklaying arch built by two-layer stone material is analyzed based on the deformable distinct element method (DEM).The simulation results are consistent with that of experiment. The research results shows that not only the load-displacement response of the arch under uniform fracture energy can be appropriately predicted through the method, but also the collapse behavior when the system partially or completely reaches failure can also be simulated