球形弹丸作用下钢/铝爆炸复合靶的抗侵彻性能计算与分析  

Calculation and Analysis for the Anti-Penetration Performance of Explosively Welded Steel/Aluminum Plates Target by the Penetration of Spherical Projectile

作　　者：周楠[1] 王金相[1] 谢君[1] 董刚[1] 

机构地区：[1]南京理工大学瞬态物理重点实验室,江苏南京210094

出　　处：《高压物理学报》2013年第6期839-846,共8页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金(10902054);教育部新教师基金(200802881013);中国博士后基金(2011M500929);瞬态物理重点实验室基金(9140C300205110C3001);江苏省博士后基金(1101003B)

摘　　要：以钢/铝、钢/铝/钢爆炸复合靶为研究对象,采用系列弹道侵彻实验研究了其抗侵彻性能,侵彻实验利用14.5mm滑膛枪发射直径6mm的钢质球形弹丸。基于实验结果,分析了复合靶的毁伤模式,根据能量守恒原理建立了侵彻理论的计算模型,定性分析了不同层数及组合方式、厚度、强度等因素对复合靶抗侵彻性能的影响。研究结果表明,在弹丸的垂直侵彻作用下,钢面板和铝夹板发生剪切冲塞破坏,钢背板发生花瓣型扩孔破坏,当铝为背板时,为延性扩孔破坏。靶板各层强度和厚度的变大有利于提高复合靶的抗侵彻性能,在总厚度一定的情况下,三层复合靶的抗侵彻性能优于双层靶。理论计算结果同实验结果吻合良好,表明该理论计算模型可较好地预测复合靶板的抗侵彻性能。A series of penetration-experiments were performed to investigate the anti-penetration performance of two and three layers＇ explosively welded steel/aluminum and steel/aluminum/steel targets,the 14, 5 mm slip chamber gun was used to launch the spherical steel projectile with diameter of 6 mm in the experiments. The failure modes of the layered targets were analyzed recur to the exper- imental results and on this basis a theoretical model was proposed to calculate the anti-penetration per- formance of the targets. The effects of different combinational style, thickness and intensity etc. on the anti-penetration performance of the targets were also analyzed qualitatively by the calculation model. The results show that：the damage mechanism of the steel front plate and aluminum middle plate is shearing and plugging,the steel rear plate is petalling damage and the aluminum rear plate is ductile prolonging; increasing intensity and thickness of the layered targets are beneficial for the anti- penetration performance;the anti-penetration performance of three-layer plates is better than that of the two-layer plates with the same total thickness; the results of theoretical calculation are well consistent with experimental results, indicating that the theoretical calculation model can predict the anti-penetration performance of layered targets effectively.

关 键 词：爆炸复合靶 功能梯度靶 抗侵彻性能 计算模型 

分 类 号：O385[理学—流体力学]