建立了蜂窝板有限元模型，模拟了平压和横向侧压工况下蜂窝板的承载响应行为，并进行了试验验证；采用建立的有限元模型，引入芯层壁间脱焊和面板与芯层焊接不良缺陷，研究了不同压缩工况下焊接缺陷对蜂窝板承载能力的影响。结果表明：平压时，蜂窝板主要以芯层屈曲的方式失效，横向侧压时，蜂窝板的失效由面板和芯层之间的局部开裂和面板的屈曲起皱共同导致；两种压缩工况下，载荷-位移曲线的模拟结果和试验结果的吻合性均较好，最大载荷的相对误差小于10%；平压时，芯层壁间的脱焊缺陷数量越多，钎焊铝蜂窝板的承载能力越小；横向侧压工况下，焊接缺陷区域的尺寸越大，蜂窝板的最大承载力越小，结构越容易失效。

The finite element model of the honeycomb panel was established, and load-bearing response behavior of honeycomb panel under conditions of flat compression and lateral compression was simulated. The results were verified by experiments. With the finite element model, the influence of welding defects on the bearing capacity of honeycomb panel was studied by introducing the core layer wall debonding and the poor welding defects between panel and core layer. The results show that the honeycomb panel failed by buckling of the core layer under flat compression. Under lateral compression, the honeycomb panel failed by the combination of partial splitting between the panel and core layer, and buckling of the panel. The simulation of the load-displacement curves were in good agreement with the test results under two compression conditions, and the relative errors of the maximun loads were lower than 10%. Under flat compression, the more number of desoldering between the core layer walls the smaller the bearing capacity of brazed aluminum honeycomb panel. Under the lateral compression, the larger the size of the welding defect area, the smaller the maximum bearing capacity of the honeycomb panel, and the easier the structure failure.