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	Cohesive crack model based on extended finite element method
	Fang Xiujun ; Jin Feng ; Wang Jinting
	2010-05-11 ; 2010-05-11
关键词	Practical Theoretical or Mathematical/ beams (structures) bending brittle fracture cracks finite element analysis structural engineering computing/ cohesive crack model extended finite element method virtual node ABAQUS discontinuous displacement modes bending beam fracture process cracking path quasibrittle materials numerical simulation/ C7440 Civil and mechanical engineering computing C4185 Finite element analysis E2180E Fracture mechanics and hardness (mechanical engineering) E2110A General shapes and structures E1710 Engineering materials E2180B Plasticity (mechanical engineering) E0410H Mechanical engineering applications of IT E0210L Numerical analysis
中文摘要	A virtual node method was developed to embed the extended finite element method (XFEM) into ABAQUS. Governing equations were derived for the cohesive crack model based on the XFEM. The XFEM describes the evolving internal boundary by introducing discontinuous displacement modes, so re-meshing is avoided. The method was then used to analyze the fracture of a three-point bending beam. The results agree well with previous results and ABAQUS predictions using the cohesive element. The results demonstrate that the XFEM is an efficient method for simulating the fracture process, especially when the cracking path is hard to accurately predict. The present cohesive crack model based on the XFEM provides a useful way to simulate cracking in quasi-brittle materials.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/27462]
专题	清华大学
推荐引用方式 GB/T 7714	Fang Xiujun,Jin Feng,Wang Jinting. Cohesive crack model based on extended finite element method[J],2010, 2010.
APA	Fang Xiujun,Jin Feng,&Wang Jinting.(2010).Cohesive crack model based on extended finite element method..
MLA	Fang Xiujun,et al."Cohesive crack model based on extended finite element method".(2010).

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