金属基活性破片侵彻间隔铝靶作用行为  

Behaviors of Metal-based Reactive Fragments Penetrating Spaced Aluminum Targets

作　　者：周晟 张甲浩 余庆波[1] ZHOU Sheng;ZHANG Jiahao;YU Qingbo(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《兵工学报》2023年第8期2263-2272,共10页Acta Armamentarii

基　　金：国家自然科学基金项目(U1730112)。

摘　　要：为揭示活性破片穿靶毁伤机理,研究活性破片靶后碎片云与毁伤效应行为,开展了金属基活性破片侵彻间隔铝靶弹道枪实验。通过观察间隔铝靶穿孔模式与弹靶作用行为高速摄像,结合破片侵靶破碎理论、能量守恒定律和活性破片激活响应行为,分析活性破片侵彻间隔铝靶作用行为。研究结果表明:球形活性破片侵彻间隔铝靶时,对前靶造成冲塞毁伤,靶后形成碎片云对后靶造成动能-化学能耦合毁伤,后靶毁伤主要呈现为中心贯穿和碎片撞击复合模式,活性破片激活程度随碰撞速度增加呈增大趋势:建立了活性破片靶后碎片云理论模型,获得了碎片云演化规律,在不同碰撞速度下,临界贯穿孔径位置处的单位碎片动能与单位反应质量呈负相关关系。Ballistic impact experiments are conducted on metal-based reactive fragments impacting spaced targets to investigate the post-target debris cloud and damage effect behaviors of the reactive fragments,and to reveal the mechanism of their penetration.By observing the perforation mode of spaced target and the action behavior of fragments,we combine the breakage theory of target penetration,energy conservation law,and the reactivation response behaviors of reactive fragments to analyze and discuss the behaviors of reactive fragments penetrating spacer aluminum targets.The results show that the front target is plugging,and the rear target mainly presents the composite mode of center penetration and debris impact due to the kinetic energy-chemical energy coupling damage of post-target debris cloud.With increasing impact velocity,the reactive of reactive fragments increases.The theoretical model of the reactive fragments'post-target debris cloud is established,and the evolution law of debris cloud is obtained.At different impact velocities,the unit debris kinetic energy is negatively correlated with unit reaction mass at the position of the critical through aperture.

关 键 词：金属基活性破片 间隔铝靶 弹道枪实验 碎片云 

分 类 号：TJ012.4[兵器科学与技术—兵器发射理论与技术]