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A finite element analysis of angle-ply laminate end-notched flexure specimens

机译:角板层合板端部弯曲挠性样品的有限元分析

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This paper deals with two and three-dimensional finite-element analysis of unidirectional and angle-ply laminate end-notched flexure specimens. Such laminates are for instance commonly used for deep sea applications and offer considerable advantage over their metal counterparts. Much work has recently been devoted to the failure mechanisms of composites. The area of delamination growth of composite laminates and shells is also a key issue for the structural performance and certification of underwate composite shells. In this study a geometric non-linear, two and three-dimensional finite element analysis of the end-notched flexure specimen, is performed to evaluate compliance and Mode-Ⅱ strain energy release rate G_Ⅱ. Comparisons are made with experimental results and beam and plate theory solutions.
机译:本文研究了单向和角向层合层压板端部缺口挠性样品的二维和三维有限元分析。这样的层压板例如通常用于深海应用,并且与它们的金属对应物相比具有相当大的优势。最近,许多工作致力于复合材料的破坏机理。复合层压板和外壳的分层增长区域也是欠水复合外壳的结构性能和认证的关键问题。本文对端部弯曲挠性试样进行了几何非线性,二维和三维有限元分析,以评估柔度和Ⅱ型应变能释放速率G_Ⅱ。与实验结果以及梁板理论解进行了比较。

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