Delamination and transverse crack growth prediction for laminated composite plates and shells

Delamination and transverse crack growth prediction for laminated composite plates and shells
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层合复合材料板壳的分层和横向裂纹扩展预测

DOI:
10.1016/j.compstruc.2016.07.011
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发表时间:
2016-12
影响因子:
4.7
通讯作者:
D. H.
D. H.
中科院分区:
工程技术2区
文献类型:
--
作者:
Li;D. H.

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基于扩展分层方法(XLWM)(Li,2016; Li等人,2015)和虚拟裂纹闭合技术(VCCT),提出了一种预测复合材料层合板壳脱层和横向裂纹扩展的VCCT-XLWM方法。在VCCT-XLWM方法中,用XLWM方法模拟含分层和横向裂纹的复合材料层合板壳,用VCCT方法计算沿着分层前缘的应变能释放率。采用Xie和Biggers(2006)提出的算法跟踪任意形状的分层前缘,采用混合型断裂准则预测分层扩展。
Based on the extended layerwise method (XLWM) (Li, 2016; Li et al., 2015) and virtual crack closure technique (VCCT), a VCCT-XLWM method is proposed to predict the delamination and transverse crack growth of laminated composite plates and shells. In the VCCT–XLWM method, the laminated composite plates and shells with delamination and transverse crack are simulated by the XLWM method, and the strain energy release rate (SERR) along the delamination front is calculated by the VCCT. The moving delamination front with an arbitrary and changing shape is traced by an algorithm presented by Xie and Biggers (2006), and delamination growth is predicted by a mixed-mode fracture criterion.
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