A study of constitutive model for granular material based on characters of discrete particles arranged

A granular material constitutive model considered the particles arranged pattern is developed. A representative unit which consists of several particles is introduced in this model. The relations between stress and strain can be described by the particle concentration, the pattern with particle arranged in unit, and the friction between particles. A Finite element programming work has been done based on the software ABAQUS. A numerical example illustrates that the constitutive model can be applied to numerical analysis of granular material in which the behavior of particles is considered.