Reactive jet density distribution effect on its penetration behavior

作     者：Huan-guo Guo Cheng-hai Su Yi-qiang Cai Suo He Qing-bo Yu Haifu Wang Huan-guo Guo;Cheng-hai Su;Yi-qiang Cai;Suo He;Qing-bo Yu;Haifu Wang

作者机构：State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing100081China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2023年第24卷第6期

页      面：190-202页

核心收录：

学科分类：08[工学] 082603[工学-火炮、自动武器与弹药工程] 0826[工学-兵器科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(No.12002046) the China Postdoctoral Science Foundation(No.2020M680392) 

主　　题：Shaped charge Reactive jet Density distribution Jet penetration Virtual origin 

摘      要：In this paper,the penetration mechanism of reactive jet with non-uniform density distribution is *** simulations show that the density deficit occurs in the whole reactive jet,and the density increases from the jet tip to *** density of jet tip is approximately 1.5 g/cm3,which is lower than that of the reactive liner *** X-ray experiments show similar results with the *** density decreasing effect of jet tip has a significant influence on the penetration behavior when the reactive jet impacts steel *** to the simulation results,this paper assumes that the density gradient in the jet section has linear ***,the deflagration pressure generated by each jet element at the bottom of crater is introduced into the Bernoulli *** on the virtual origin model and Szendrei-Held equation,the analytical models for penetration depth and radial cratering of reactive jet with the density reduction are ***,to further prove the validity of analytical models,the penetration experiments of the reactive liner shaped charge against steel plate under different standoffs are carried *** is a convergence between the analytical crater profiles and experimental results when reactive jets penetrate steel plates under different standoffs,especially at standoff of 1.5 and 2.0charge diameters.