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粘结层性能对陶瓷复合装甲抗多发打击性能有重要影响。建立了研究粘结层和多发打击的数值模拟方法,解决了传统方法不能模拟“脱粘”和多发打击的问题。基于文献弹道试验,研究了环氧树脂和聚氨酯两种粘结层材料及其厚度对陶瓷/铝合金复合装甲抗7.62mm穿甲弹单发和两发打击性能的影响。结果表明:单发打击的数值模拟可不建粘结层,而多发打击应采用建粘结层的方法;抗单发打击时,粘结层越薄,极限速度越大;抗多发打击时,陶瓷复合装甲应采用聚氨酯粘结层,且其抗两发打击的较优厚度约为0.40mm。
Bonding layer performance ceramic composite armor has an important impact on anti-multiple strike performance. A numerical simulation method to study the adhesive layer and multiple blows is established, which solves the problem that traditional methods can not simulate “sticking off” and multiple attacks. Based on the literature ballistic test, the effects of the two adhesive layers of epoxy resin and polyurethane and their thickness on the single and double strike performance of ceramic / aluminum alloy armor anti-7.62mm armor piercing bombs were studied. The results show that the numerical simulation of single strike does not build an adhesive layer, but multiple attacks should be based on the method of building an adhesive layer; the thinner the adhesive layer when the single strike is applied, the greater the maximum speed. In the case of multiple blows, Composite armor should be polyurethane adhesive layer, and its anti-two-hit the optimal thickness of about 0.40mm.