通过落锤冲击试验分别在复合材料加筋壁板的蒙皮中央、长桁平筋边缘和长桁轴线处冲击出深约1 mm的凹坑, 然后对其进行轴压试验, 研究了损伤位置对加筋壁板轴压承载能力的影响, 并与未损伤试样进行了对比。结果表明: 损伤位置对复合材料加筋壁板轴压承载能力有很大影响, 损伤位于蒙皮中央、长桁平筋边缘、长桁轴线处加筋壁板的屈曲载荷分别为未损伤加筋壁板的83.1%, 90.7%, 96.1%, 破坏载荷分别为未损伤加筋壁板的90.2%, 84.8%, 79.7%; 蒙皮对加筋壁板的整体稳定性起主要作用, 筋条对加筋壁板的最终承载能力起主要作用。

The three different locations, central skin, stringer fillet border and stringer axis, on the composite stiffened panel were damaged about 1 mm pit by the way of drop-hammer impact, in the next step, axial compression tests was carried on. Contrasted with a intact panel, the effect of damage locations on axial compression capacity of the composite stiffened panel was studied. The results show that damage location has a great impact on capacity of the panel. The buckling loads of the stiffened panels with damage locations in central skin, stringer fillet border and stringer axis were 83.1%,90.7%,96.1% of the intact panel, respectively, and the damage loads were 90.2%,84.8%,79.7% of the intact panel, respectively. The skin plays a major role in stability of stiffened panel while fillet plays a major role in final carrying capacity.