二维码（扫一下试试看！） | | 活性复合罩聚能装药侵彻增强行为 | | Penetration Enhancement Behavior of Reactive Material Double-Layered Liner Shaped Charge | | 投稿时间：2019-09-29 | | DOI：10.15918/j.tbit1001-0645.2019.247 | | 中文关键词:聚能装药活性材料复合药型罩侵彻行为 | | English Keywords:shaped chargereactive materialdouble-layered linerpenetration behavior | | 基金项目:国家自然科学联合基金项目（U1730112） | | | 摘要点击次数:1008 | | 全文下载次数:408 | | 中文摘要: | | 为解决传统高聚物基活性罩聚能装药侵彻深度严重不足这一瓶颈性问题，提出了一种活性-铜复合罩聚能装药结构，并采用数值模拟和实验相结合的方法，研究了活性-铜罩射流成形及侵彻钢靶增强行为.仿真表明，内层铜罩主要形成高速前驱射流首先侵彻钢靶，活性材料外罩大部分形成杵体且可以随进侵孔内部.实验结果表明，与传统单一活性射流相比，活性-铜射流对钢靶造成的侵深更大，且侵彻性能与进入侵孔内的活性材料质量显著受炸高影响.实验与仿真对比表明，活性材料的爆燃反应会导致侵彻过程提前终止，可能的机理是其化学反应在侵孔内会形成超压，造成铜射流严重失稳，致使剩余射流无法再继续侵彻. | | English Summary: | | To solve the problem of insufficient penetration depth of traditional polymer-based reactive liner shaped charge,a novel reactive material-copper liner shaped charge was designed. The jet formation and penetration enhancement behavior of the reactive material-copper jet against steel target were studied through combining simulations and experiments. Numerical simulations indicate that the inner copper liner mainly forms a high-velocity precursor jet to firstly penetrate the steel target,and the outer reactive liner becomes a major part of the slug,which can follow the copper jet into the penetration hole. Experimental results show that,compared with the traditional single reactive jet,this reactive material-copper jet produces a deeper penetration depth,and its penetration performance and reactive material mass entering the penetration hole are strongly influenced by the standoff. Further comparison analysis demonstrates that the deflagration reaction of reactive materials will lead to an early termination of the penetration process,and the likely mechanism is that reactive materials' chemical reaction would cause the serious instability of copper jet,eventually resulting in the residual jet not being able to continue penetration. | | 查看全文查看/发表评论下载PDF阅读器 | |
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