Shape-free Hybrid Stress-Function Elements with drilling degrees of freedom for Crack Propagation Si

来源 :第五届亚太国际工程中计算方法学术会议暨第11届全国工程计算方法学术会议 | 被引量 : 0次 | 上传用户：tower2008

【摘要】

：

　　In this paper,a new plane shape-free multi-node singular hybrid stress-function(HS-F)element with drilling degrees of freedom,which can accurately capture t

【作者】

：

SongCen;YiBao;

【机构】

：

Department of Engineering Mechanics,School of Aerospace Engineering,Tsinghua University,Beijing 1000

【出处】

：

第五届亚太国际工程中计算方法学术会议暨第11届全国工程计算方法学术会议

【发表日期】

：

2015年期

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　　In this paper,a new plane shape-free multi-node singular hybrid stress-function(HS-F)element with drilling degrees of freedom,which can accurately capture the stress intensity factors at the crack tips,is developed.Then,a quasi-static 2D crack propagation modeling strategy is established by combination of the new singular element and a shape-free 4-node HS-F plane element with drilling degrees of freedom proposed recently.Only simple remeshing with an unstructured mesh is needed for each simulation step.Numerical results show that the proposed scheme is an effective and robust technique for dealing with the crack propagation problems.

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Shape-free Hybrid Stress-Function Elements with drilling degrees of freedom for Crack Propagation Si

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