Investigation of the laminate free‐edge effect by means of the scaled boundary finite element method
Investigation of the laminate free‐edge effect by means of the scaled boundary finite element method
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通过缩放边界有限元法研究层合板自由边缘效应
DOI：
10.1002/pamm.201800129
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Becker
中科院分区：
文献类型：
--
作者：
Dölling;Becker
本文采用有限断裂力学框架下的应力和能量耦合准则来预测复合材料层板由自由边缘效应引起的层间裂纹的发生。为了得到评价耦合准则所需的量，采用了尺度边界有限元法。与标准有限元方法相比，这种半解析方法大大减少了数值计算的工作量。为了评估所得结果的可靠性，提出了与有限元模型的比较。
In the present study, a coupled stress and energy criterion within the framework of finite fracture mechanics is used to predict interlaminar crack onset in composite laminates induced by the free‐edge effect. In order to obtain the required quantities for the evaluation of the coupled criterion the scaled boundary finite element is implemented. This semi‐analytical approach reduces the numerical effort significantly in comparison to standard finite element method. To assess the reliability of the obtained results a comparison to a finite element model is presented.