Failure Behavior of Geomaterial using Smoothed Particle Hydrodynamics

摘要

Smoothed particle hydrodynamics (SPH) has been applied to simulate failure process of a soil sample under unconfined compression loading conditions. The elastic-plastic constitutive model of geomaterial is developed based on Drucker-Prager yield criterion, considering (i) associative (ii) non-associative plastic flow rules. Velocity boundary conditions of the upper and lower platens are applied in the model. This paper composes the results in terms of von Mises stress and accumulation of effective plastic strain in the sample for both associative and non-associative conditions.