The composite structure in order to resist the high velocity fragment produced by anti-ship missile impact was designed and factured. The facet of composite structure was high strength fiber-glass plate and cores were PVC foam and UHMWPE plate. Ballistic experiment was conducted on the composite structure to study its anti-penetration performance. Meanwhile the ballistic experiment of 945 steel penetrated by fragment was carried out. The results showed that the pre facet plate failed in fiber shearing,tensile fracture,matrix crack and fiber seperation with matrix. The damage of pre PVC foam was crushing,through-thickness shearing and tearing. UHMWPE failed in fiber shearing,tensile fracture and back convex deformation. The post PVC foam was craushed while the post fiber-glass plate had no obvious damage. The cube bullet occured serious frusta deformation and the steel failed in shear plugging. The per area energy absorpion of composite structure was 34% higher than that of 945 steel.%为抵御反舰导弹产生的高速破片,设计制作了以高强玻璃纤维板为面板、聚氯乙烯(PVC)泡沫材料和高强聚乙烯纤维板为芯层的复合结构,并开展弹道试验研究其抗侵彻性能,为对比分析开展了945钢抗高速破片侵彻试验.结果表明,前置高强玻璃纤维板产生纤维剪切、拉伸断裂、基体碎裂和纤维脱粘破坏,前置PVC泡沫产生压实坍塌、胞壁剪切断裂和压碎破坏,高强聚乙烯纤维板主要产生纤维剪切、拉伸断裂并出现背凸大变形,后置PVC泡沫板产生压实破坏,后置高强玻纤板并未明显破坏裂纹;立方体弹侵彻945钢板时产生严重墩粗变形,钢板产生剪切冲塞破坏;复合结构单位面密度吸能较945钢板提高34%.
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