陶瓷/液舱复合结构抗侵彻机理试验研究

为探讨EFP战斗部的防护方法,文章根据陶瓷材料和液舱结构的抗侵彻机理,提出在舰船防护液舱前增设抗弹陶瓷材料层抵御大质量弹丸的侵彻,设计了1/10缩尺的防护液舱结构模型,开展了3类陶瓷/液舱复合结构抗侵彻试验研究,分析了弹体、液舱前、后面板的破坏模式和侵彻过程以及复合结构的抗侵彻效能.结果表明:弹体主要发生墩粗-侵蚀破坏;液舱结构前面板的破坏分为剪切冲塞(花瓣开裂)、碟形变形、薄膜鼓胀和失稳凹陷四个阶段;后面板的破坏随板的厚度而变化:后板较厚时发生剪切冲塞,较薄时发生花瓣开裂;初始压力峰值远远大于空化载荷峰值,但空化载荷对结构的破坏起着主要作用.

Experimental study on anti-penetration mechanism of ceramic/fluid cabin composite structure

According to the anti-penetration mechanism of ceramic materials and fluid cabin structure, idea of adding the annor ceramic material layer to the guarding fluid cabin of ships is proposed to resist the penetration of massive projectile,and guarding fluid structure model of 1/10 scale is designed. Resistance to penetration experimental research of 3 kinds of ceramic/fluid cabin composite structures is carried out, and the failure modes and penetration process of the projectile, the front and rear panels of the fluid cabin are analysed as long as the resistance performance of the composite structure. The results show that the pro-jectile mainly occurred coarse-erosion damage. The damage of the front panel of the fluid cabin structure is included four stages of shear plugging, disc deformation, film swelling, and sunken deformation due to in-stability. Damage of rear panel changes as the thickness of the panel changes: shear plugging occurs when the rear panel is thick enough, and patal cracking occurs when it is thin. Caviation load plays a major role in the damage of the structure, while initial pressure peak value is much greater than the caviation load peak value.