研究反应破片对中厚铝合金靶的侵彻效应。设计了一种单发反应破片侵彻效应研究的试验装置,研究了反应破片在不同撞击速度下对中厚铝合金靶的侵彻效应;并利用AUTODYN-2D软件建立了反应破片侵彻中厚铝合金靶板效应的数值模拟方法。结果表明:Al/PTFE反应破片在高速撞击下具有动能和化学能双重毁伤效应,在1346~1645m/s的撞击速度下可发生点火和能量释放,在20mm厚铝合金靶上形成3.41~6.51mm的侵孔,在此基础上开展的数值模拟结果与试验结果也有较好吻合。

The penetration effect of reactive fragment on medium thickness aluminum alloy target aimed at was studied. An experimental equipment was designed in order to study the penetration of single reactive fragment with different impacting speeds, and the pressure propagation process of reactive fragment penetrating aluminum target was simulated using the finite element analysis software of AUTODYN-2D. The results show that Al/PTFE reactive fragment possess the double damage effect from both kinetic energy and chemical energy under the condition of high speed impact. With the impact speed of 1,346 m/s~1,645 m/s, the fragment could occur and ignition energy release, forming the hole of 3.41 mm~6.51 mm on the thick aluminum alloy target of 20mm. Based on the experiment, the numerical simulation results fit quite well with the experiment results.