An integration technique for 3D curved cracks and branched discontinuities within the extended Finite Element Method

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• 作者：B. Paul^a ; ^b ; ^c ; ^{bertrand.paul@polytechnique.edu} ; M. Ndeffo^a ; ^d ; ^{marcel-m-externe.ndeffo@edf.fr} ; P. Massin^a ; ^{patrick.massin@edf.fr} ; N. Moë ; s^d ; ^{nicolas.moes@ec-nantes.fr}
• 关键词：XFEM ; Level-set-method ; High order approximation ; Numerical integration ; Curved geometries
• 刊名：Finite Elements in Analysis and Design
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：123
• 期：Complete
• 页码：19-50
• 全文大小：4457 K
• 卷排序：123

文摘

An integration technique for 3D quadratic XFEM models is proposed. It includes the possibility of having branched discontinuities. Convergence analyses demonstrate the accuracy of the integration procedure.