叠合双层靶抗球形破片的侵彻能耗  

Energy Consumption of Composite Double-Layer Targets against Spherical Fragment Penetration

作　　者：徐瑞 智小琦[1] 范兴华 XU Rui;ZHI Xiaoqi;FAN Xinghua(College of Mechatronics Engineering,North University of China,Taiyuan,030051,Shanxi,China;Jinxi Industries Group Co.,LTD.,Taiyuan,030051,Shanxi,China)

机构地区：[1]中北大学机电工程学院,山西太原030051 [2]晋西工业集团有限公司,山西太原030051

出　　处：《高压物理学报》2020年第6期112-122,共11页Chinese Journal of High Pressure Physics

摘　　要：为了研究影响叠合双层靶抗弹性能的因素,在靶板总厚度为7.2 mm的条件下,采用直径为9.5 mm、质量为8.05 g的钨合金球形破片侵彻单层和不同组合方式的叠合双层Q235钢靶板。弹道极限试验结果表明:(3.6+3.6)mm靶板最高,(5.4+1.8)mm靶板次之,(1.8+5.4)mm靶板最低,单层7.2 mm靶板与(5.4+1.8)mm叠合靶基本相同。研究发现,叠合靶排列方式不同,则其破坏模式与耗能模式不同。当双层靶板均产生冲塞破坏时,压缩耗能和凹陷耗能是影响靶板抗弹性能的主要因素;当前靶板为冲塞破坏、后靶板为扩孔破坏时,凹陷耗能是影响靶板抗弹性能的主要因素。通过对多种组合靶的能耗计算表明,(3.6+3.6)mm的排列是本研究条件下的最优组合。这些研究结果对防护装置的设计有重要的参考价值。In order to study the factors affecting the anti-elastic energy of the composite double-layer targets,a tungsten alloy spherical fragment with a diameter of 9.5 mm and a mass of 8.05 g was used to penetrate the single layer and the superimposed double Q235 targets with different combinations,which were kept 7.2 mm in total thickness.The experimental results show that the ballistic limit of(3.6+3.6)mm targets is the highest,followed by(5.4+1.8)mm targets,and(1.8+5.4)mm targets,which is the lowest.The ballistic limit of the penetration monolayer 7.2 mm target is basically the same as that of the(5.4+1.8)mm superimposed target.It is also found that the failure and energy consumption modes of superimposed targets vary with different arrangements.When both the two layers of the targets produce slug failure,the compression and sag energy dissipations together affect the elastic energy of the targets.However,when the current target is punch failure and the rear target reaming failure,only the sag energy dissipation is the main factor affecting its elastic energy.According to the energy consumption calculation of multiple combination targets,the arrangement of(3.6+3.6)mm turns to be the optimal combination under the conditions of this study.The results are of great reference value to the design of protective device.

关 键 词：侵彻 双层靶 能耗 极限穿透速度 

分 类 号：O385[理学—流体力学]