Abstract
The loss of interparticle bonding causes mechanical damage to cohesive geomaterials. The damagemodel is a constitutive model to obtain a relationship between stress and strain which changes with the degree of damage. The authors developed a simulation model to evaluate the degree of damage in terms of the Granular Element Method. In this model the periodic boundary is adopted to perform element tests with the minimum influence of boundary condition. By a tentative application, it was found that the stress-strain relationship was predicted fairly well even with a simple damage model.
