Meshing is a key preprocessing step in finite element method（FEM）analysis.How to mesh efficiently and accurately is an important research topic.Saint Venant Principle of meshing in FEM is proposed to focus this problem in this paper,which supposes that the rarefaction of concentration of mesh somewhere affects little on the result of faraway nodes.A new approach of meshing is proposed based on this principle：firstly a general meshing is carried out in the whole region,secondly a local refinement at key areas is done to achieve a high simulat...
