X-FEM analyses of a thin-walled composite shell structure with a delamination
X-FEM analyses of a thin-walled composite shell structure with a delamination
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DOI：
10.1016/j.compstruc.2010.01.008
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发表时间：
2010-05
影响因子：
4.7
通讯作者：
T. Nagashima;H. Suemasu
中科院分区：
文献类型：
--
作者：
T. Nagashima;H. Suemasu
本文将扩展有限元法应用于以壳单元模拟的复合材料层合板的应力分析。在该方法中，一个薄壁结构包含一个界面的壳单元模拟，并在界面上的节点丰富，以模拟脱层。基于该方法开发了薄壁结构的X-FEM程序，并将其应用于含分层损伤的碳纤维增强复合材料层合板的屈曲分析。所提出的壳单元的X-FEM提供适当的结果，这与实体单元的X-FEM和传统的有限元分析得到的结果吻合良好。
The extended finite element method is applied to stress analyses of composite laminates modeled by shell elements. In the proposed method, a thin-walled structure containing an interface is modeled by shell elements, and the nodes on the interface are enriched in order to model the delamination. The X-FEM code for thin-walled structures based on the proposed method is developed and is applied to buckling analyses of Carbon Fiber-Reinforced Plastic laminate with delaminations. The proposed X-FEM for shell elements was shown to provide appropriate results, which agree well with those obtained by the X-FEM for solid elements and conventional FEM analyses.