Efficient elasto-plastic analysis via an adaptive finite element-boundary element coupling method

摘要

This paper presents an adaptive FEM-BEM coupling method for elasto-plastic analysis. The proposed method is valid for both two- and three-dimensional applications. The method takes care of the evolution of the elastic and plastic regions and avoids some limitations of the standard FEM-BEM coupling approaches. It estimates the FEM and BEM sub-domains and automatically generates/adapts the FEM and BEM meshes/sub-domains, according to the state of computation. The method eliminates the cumbersome trial and error process in the identification of the FEM and BEM sub-domains in the standard FEM-BEM coupling approaches. An example application confirms the effectiveness of the proposed method.