Explicit Finite Element Simulation for the Large Deformation Failure of the Soil Slope
The large deformation failure simulation of the soil slope is an important topic in the computational mechanics field.Due to mesh distortion,the classic implicit finite element method suffers from the difficulties to treat the large deformation involved in the soil slope failure.The explicit finite element method has the better advantage to track the material interfaces and solve the large deformation problems,because this method adopts the explicit time integration algorithm.Based on the Drucker-Prager elastic-plastic constitutive model,the large deformation failure problems for both clay and sand slopes were solved using the explicit finite element method.The simulations presented the slip failure process of the clay slope under gravity,and illustrated the formation and growth of the slip surface.The large flow process of the sand slope was also simulated,and the computed results showed the reposed angle of the sand slope was smaller than the internal friction angle of sand material.This study revealed that different failure modes were appeared in clay and sand slopes under gravity.
soil slope large deformation explicit finite element method elastic-plastic constitutive model
HUANG Peng HAO Zhi-ming LI Shun-li
Institute of Structural Mechanics China Academy of Engineering Physics Mianyang 621900,China
国际会议
西安
英文
1-5
2012-10-01（万方平台首次上网日期，不代表论文的发表时间）