摘要
为探讨连接方式对舰船舷侧外设复合装甲结构抗穿甲性能的影响,采用均质钢板粘结或叠层接触前置复合材料板分别模拟舰船舷侧粘敷或铆接固定两种连接方式的外设舷侧复合装甲,并结合低速弹道实验,分析了两种连接方式下组合靶板的穿甲破坏模式和抗弹性能,得到了球头弹穿透叠层接触组合靶板的剩余速度理论预测公式。在此基础上,将该理论预测公式计算结果与实验结果进行了比较分析。结果表明:两种组合靶板中前置装甲板的穿甲破坏模式差异不大,但叠层接触组合靶板中钢质背板穿孔周围的蝶形变形范围及其变形程度均较粘结组合靶板中的钢质背板要大;叠层接触组合靶板的整体抗弹吸能要大于粘结组合靶板;弹丸穿透叠层接触组合靶板的剩余速度理论预测值与实验结果吻合较好。
To explore the influence of the joining type on the perforation-resistance performance of ship topside exterior-mounted composite armor （EMCA） structures, low-velocity ballistic impact ex- periments are carried out. The adhibited and riveted EMCA of warship topside is simulated using homogeneous steel plates glued and in-contacted with frontal composite laminates. Failure modes and energy absorption for the two types of combined targets are analyzed and compared with each other, and an theoretical pridiction equation is obtained for predicting the residual velocities for the in-contact combined targets perforated by hemispherical-nosed projectiles, and the theoretical calculation results is compared with the experimental ones. The comparison results show that there is a slight difference in failure modes for the frontal armor plates in two types of combined targets. However, the dishing deformation region and its extent for steel backing plates in the in-contact combined targets are both greater than those for steel backing plates in the glued combined targets. The in-contact combined tar- get absorbs much more total energy than the glued combined target. The theoretical predictions of the residual velocities are proved to be in good agreement with the experimental results for the in-contact combined targets perforated by projectiles.
出处
《海军工程大学学报》
CAS
北大核心
2015年第6期15-20,共6页
Journal of Naval University of Engineering
基金
国家自然科学基金资助项目(51409253
51179200)
关键词
穿甲力学
舰船舷侧
复合装甲
连接方式
舰船维修
perforation mechanics
warship topside
composite armor
joining type
ship maintenance
