爆炸物解体器水射流侵彻靶板研究

Study on Disrupter Water Jet Penetration into Target Plate

依据国家标准提供的考核方法,利用LS-DYNA软件建立了40 mm、30 mm和20 mm三种不同口径、不同速度水射流的有限元仿真模型,研究了爆炸物解体器对Q235靶板的侵彻过程,分析了口径、速度对侵彻效应的影响。结果表明:水射流的速度相同时口径的减小,口径相同时水射流速度的减小,均会导致爆炸物解体器的侵彻能力下降;口径为40 mm、水射流速度为180 m/s时,靶板形成裂纹;口径为20 mm、水射流速度为180 m/s时,无法穿透靶板。

According to the examination method provided by the national standard,the finite element simulation models of caliber 40 mm,30 mm and 20 mm with different jet velocities were established based on LS-DYNA software.The processes of disrupter water jet penetrated the Q235 steel target plate were studied,and the influence of caliber and velocity on the penetration effect were analyzed.The results show that the velocity of water jet decreases with the same caliber and the caliber decreases with the same velocity of water jet,which will lead to the decrease of penetration capability of disrupter.Under the condition of caliber 40mm and jet velocity 180 m/s,the target plate just forms cracks.Under the condition of caliber 20 mm and jet velocity 180 m/s,the target plate can not be penetrated.