整体屈曲是缝纫复合材料夹芯板的一种重要失效模式.考虑到缝纫夹芯复合材料板一般较厚且面板与芯层厚度相差较大,缝纫工艺对夹芯板刚度影响较大的特点,基于高阶剪切理论,编制了缝纫泡沫夹芯复合材料板稳定性分析的有限元程序.利用该程序对多个算例进行了计算,所得临界屈曲应力与文献及试验结果吻合很好.同时,讨论了不同边界条件下缝纫泡沫夹芯复合材料板稳定性随缝纫参数(包括针距、行距和缝纫针半径)以及结构参数(包括面板铺层角、芯层厚度和缝纫夹芯板边长)的变化规律.
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