选取芯材高度分别为5、6、7 mm的三维中空夹芯复合材料为研究对象,采用落锤式低速冲击试验装置分别对上述材料进行8J能量的低速冲击测试,研究材料的低速冲击性能;利用Instron 3385H型万能材料试验机分别测试上述材料受到低速冲击载荷前后的压缩强度,研究材料受到低速冲击载荷后的压缩损伤容限.结果表明:三维中空夹芯复合材料对低速冲击载荷比较敏感;随着芯材高度的增加,材料抗低速冲击性能有所增加;低速冲击载荷使材料的剩余压缩强度大幅下降.
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