Quasi-static crack propagation simulation by an enhanced nodal gradient finite element with different enrichments

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• 作者：Zuoyi Kang^a ; Tinh Quoc Bui^a ; ^{tinh.buiquoc@gmail.com} ; Takahiro Saitoh^b ; Sohichi Hirose^a
• 关键词：Fracture mechanics ; Crack growth ; Consecutive-interpolation ; XFEM
• 刊名：Theoretical and Applied Fracture Mechanics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：87
• 期：Complete
• 页码：61-77
• 全文大小：3173 K
• 卷排序：87

文摘

Enhanced nodal gradient 4-node quadrilateral elements are used for quasi-static crack growth simulation. Different enrichments for crack-tip with ramp functions for crack growth are presented. XCQ4 possesses the continuous nodal gradients and continuous nodal stresses without smoothing operation. XCQ4 offers high accuracy in simulation of quasi-static crack propagation.