Contact Algorithm for Eulerian Finite Element Method

摘要

The Euelrian finite element method fixes computational meshes and materials flow through the fixed meshes,and allows arbitrary large deformations and new free surfaces.A special algorithm,however,is indispensable for contact mechanics in Eulerian formulation.This study applies a simple contact algorithm for Eulerian finite element method to plastic working simulation.The Lagrangian mesh control is generally adopted in the finite element methods for structural and solid analyses.The Lagrangian mesh follows material deformation as shown in Fig.1.By using the Lagrangian mesh control,we can treat easily path-dependent material for example elasto-plastic solid and construct material interface.