XFEM simulation of delamination in composite laminates

详细信息    查看全文

• 作者：Libin Zhao^a ; Jie Zhi^a ; ^b ; Jianyu Zhang^c ; ^{jyzhang@cqu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Zhanli Liu^d ; Ning Hu^c
• 关键词：B. Delamination ; B. Fracture ; C. Computational modeling ; C. Finite element analysis (FEA)
• 刊名：Composites Part A: Applied Science and Manufacturing
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：80
• 期：Complete
• 页码：61-71
• 全文大小：2454 K

文摘

In this paper, the extended finite element method (XFEM) is extended to simulate delamination problems in composite laminates. A crack-leading model is proposed and implemented in the ABAQUS® to discriminate different delamination morphologies, i.e., the 0°/0° interface in unidirectional laminates and the 0°/90° interface in multidirectional laminates, which accounts for both interlaminar and intralaminar crack propagation. Three typical delamination problems were simulated and verified. The results of single delamination in unidirectional laminates under pure mode I, mode II, and mixed mode I/II correspond well with the analytical solutions. The results of multiple delaminations in unidirectional laminates are in good agreement with experimental data. Finally, using a recently proposed test that characterizes the interaction of delamination and matrix cracks in cross-ply laminates, the present numerical results of the delamination migration caused by the coupled failure mechanisms are consistent with experimental observations.