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A Simple and efficient hybrid numerical quadrature scheme for structured extended FEM

Yamada, Tomonori; Nagashima, Toshio*

A simple and efficient integration scheme for finite elements on the boundary of analysis domain in structured finite element analysis is presented. In structured finite element analysis, the structured grid is adopted as finite elements and the inconsistency between boundary of finite elements and that of analysis domain occurs. A hybrid Newton-Cotes integration technique is proposed and efficient integration of element stiffness matrices on the boundary of analysis domain is achieved.



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