An Accelerated Meshfree Analysis of Three Dimensional Soil Slope Failure under Finite Deformation

A three dimensional updated Lagrangian Galerkin meshfree formulation with improved computational efficiency is presented to analyze the failure of soil slopes under finite deformation. This nonlinear meshfree formulation is featured by the Lagrangian stabilized conforming nodal integration method where the low cost nature of nodal integration approach is kept and at the same time the spatial stability is achieved. The initiation and propagation of failure in the soil slope is modeled by the coupled constitutive equations of isotropic damage and pressure dependent plasticity. The effectiveness of the present method is demonstrated by a three dimensional slope failure example.