APPLICATION OF XFEM IN METAL FRACTURE ANALYSIS

摘要：

Metal fracture is a complex discontinuous mechanical problem,having geometric mutation in the object.The extended finite element method (XFEM) follows the frame of conventional finite element method (CFEM) and succeeds in solving the problems of contour stress and strain concentration at the crack tip,which is the effective method to analyze the metal fracture problems recently.In this paper,the basic theory of XFEM is introduced firstly.And then the two metal fracture examples are simulated by XFEM.The whole failure process,including initiation,propagation and abruption of crack,is simulated successfully,which indicates the feasibility and advantage of applying XFEM to the metal fracture analysis.

关键词： XFEM Metal fracture numerical simulation

作者: P.Wang M.J.Hu S.Y.Song

作者单位: Key Laboratory for Mechanical & Environment Behavior of Tubular Goods,CNPC Tubular Goods Research Institute,Xian 710065,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 820-823

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）