The cohesive element approach is proposed as a tool for simulating delamination propagation between a facesheet and a core in a honeycomb core composite panel. The cohesive model has two parameters (critical energy release rate (G_c) and tensile strength (σ_c)), and the parameters are selected from the experiments. The proposed model is validated by simulating the 914 X 914mm (36 X 36 in.) debond panel experiment under edge compression loading. It is concluded that the cohesive element approach can predict delamination propagation of a honeycomb panel with reasonable accuracy.
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机译：提出了粘合元件方法作为用于在蜂窝核心复合板中的面板和芯之间模拟分层传播的工具。凝聚力模型具有两个参数（临界能量释放速率（G_C）和拉伸强度（σ_c）），并且参数选自实验。通过在边缘压缩负载下模拟914 x 914mm（36 x 36英寸）的借方面板实验，验证所提出的模型。结论是，粘性元素方法可以预测具有合理精度的蜂窝面板的分层传播。
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