活性破片对钢板侵彻性能的实验研究

Experimental Investigation on Penetration Behavior of Reactive Fragment against Steel Plates

进行了弹道枪发射实验,研究了活性破片对钢板侵彻性能和毁伤效应.测量破片穿透不同厚度钢板的临界速度,采用高速摄影仪观察破片侵彻钢板过程和反应现象.实验结果表明,活性破片在497 ～ 1374 m/s速度范围内,撞击钢板时发生了反应,并伴随有强烈的燃烧、爆炸现象.在战斗部设计关心的1 500 ～2 200 m/s范围内,活性破片对典型的6 mm厚等效钢板具有足够的侵彻能力;且穿孔直径大于惰性钢破片.聚合物基体材料的强度低和撞靶反应是造成活性破片侵彻穿甲能力弱于钢破片的主要原因.活性材料强度和密度相对钢靶较低,导致撞击靶板过程中发生较大的镦粗变形以及侵靶过程中反应对靶孔产生径向膨胀效应使穿孔孔径增加.

The penetration performance and damage effect of reactive fragments on steel target were studied by ballistic experiment. The critical velocity of reactive fragments perforating different thick steel plates was measured and a high speed camera was used to record the whole reactive fragments＇ penetration process and its reaction. The results show that reactive fragments ignite on impacting steel plates at （497- 1 374）m/s, producing violent defla- gration and detonation. Reactive fragments can perforate 6 mm steel plate of typically equivalent thickness at （ 1 500 - 2 200） m/s, which is concerned for warhead design, and the hole diameter of steel plates perforated by re- active fragments are bigger than that of steel fragments. The main reasons that the penetrating performance of reac- tive fragments is lower than that of steel fragments are lower strength of Polymer matrix and ignition on impact. The mushroom deformation of reactive fragments because of its relatively lower density and strength than steel fragments, and the radial expansion effect on holes produced by impact reaction during the process of penetrating into steel tar- get, which enlarger the hole diameter.