The numerical simulation of the crack elastic-plastic extension based on the generalized extended element method

摘要：

　　Based on the generalized extended element method (GXFEM) being of the characteristic of high accuracy and the capacity of simulating crack extension without re-meshing,the GXFEM is adopted to solve the extension simulation problem of elastic–plastic crack propagation.In order to avoid the unsymmetrical stiffness matrix induced by non-associated plasticity flowing rule,the plasticity flowing rule containing cross couple item within the least energy dissipation principle frame is adopted,and the increment iteration form about elastic–plastic GXFEM is deduced subsequently.This increment iteration form reduces the calculation expenditure greatly because of the symmetrical stiffness.

关键词： GXFEM elastic-plastic extension of crack the least energy dissipation principle saturated plastic zone J integral

作者: Xiao-Zhou Xia Qing Zhang Hong Wang

作者单位: Department of Engineering nechanics,College of Mechanics and Materials,Hohai University,Nanjing 2100 School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou 510006,C

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-1

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）