着靶攻角对12.7 mm穿燃弹侵彻陶瓷复合装甲板的影响  

Study on the Effect of Attack Angle on 12.7 mm Armor-piercing Incendiary Projectile Penetrating Ceramic Composite Plate

作　　者：冯立华 张兴金 谭小辉 纪杨子燚 FENG Lihua;ZHANG Xingjin;TAN Xiaohui;JI Yangziyi(AVIC Shaanxi Aircraft Industry Co.,Ltd.,Hanzhong 723000,China;School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]陕西飞机工业有限责任公司,陕西汉中723000 [2]南京理工大学机械工程学院,江苏南京210094

出　　处：《弹道学报》2024年第4期39-47,共9页Journal of Ballistics

摘　　要：针对某构型陶瓷复合装甲板开展了12.7 mm穿甲燃烧弹的侵彻试验,得到了枪弹对复合装甲板的极限穿透速度和靶板的毁伤形态。基于LS-DYNA光滑粒子动力学方法,建立了枪弹侵彻陶瓷复合装甲板的有限元模型,通过对比试验和数值模拟得到的枪弹对靶板的极限穿透速度、陶瓷板正面的破坏形态和穿孔尺寸、复合靶板背面变形及损伤情况,验证了该模型的正确性。利用建立的有限元模型分析了枪弹着靶攻角对侵彻过程中枪弹和靶板动态响应的影响规律。研究结果表明:相较无攻角情况,攻角不大于6°时,由于枪弹头部与接触面积较小,增加攻角可增强枪弹对陶瓷复合装甲板的侵彻能力;当攻角进一步增大后,枪弹穿透陶瓷靶板后,由于枪弹偏转角度较大,其尾部仍与陶瓷板中央破碎区外未破碎的陶瓷相互作用,消耗了其部分动能,导致其侵彻能力下降。陶瓷吸收的能量约为复合材料层的5倍,即枪弹着靶攻角主要通过影响陶瓷板的吸能情况影响最终靶板的穿透情况。The penetration test of 12.7 mm armor-piercing incendiary ammunition on a certain type of ceramic composite armor plate structure was carried out.The limit penetration velocity of the projectile to the composite armor plate and the damage pattern of the target plate was obtained.The finite element model of the projectile penetration of ceramic composite armor plate was established based on the smoothed particle hydrodynamics method in LS-DYNA.The finite element model was verified by comparing the maximum penetration velocity of the projectile,damage patterns and perforation size on the front side of the ceramic plate,deformation and damage on the back side of the composite target plate obtained from the experiment and numerical simulation.Then,the effect of the attack angle on the dynamic response of the projectile and the target plate in the penetration process was simulated and analyzed.The results show that,the penetration ability of the projectile to the ceramic composite armor plate is enhanced due to the decreasing of contact area between the head of projectile and target when the attack angle increasing from 0°to 6°.With the attack angle further increasing,the penetration ability of the projectile penetration ability decreases.It is resulted from the interaction the tail of projectile with the unbroken ceramic outside the central crushing area of the ceramic plate after the projectile penetrates the ceramic target plate due to the large deflection angle of the projectile.The interaction consumes part of its kinetic energy and leads to the decrease of its penetration ability.The energy absorbed by the ceramic is approximately 5 times that of the composite material layer,indicating that the attack angle mainly affects the energy absorption of the ceramic plate and consequently influences the penetration of the target plate.

关 键 词：陶瓷复合装甲 穿甲燃烧弹 攻角 侵彻 

分 类 号：TJ303.4[兵器科学与技术—火炮、自动武器与弹药工程]