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| 双层药型罩内罩开槽对EFP形成尾翼的影响？ | |
| 引用本文： | 郭帅,李小军,于小洁,陈智刚,裴思行,付建平.双层药型罩内罩开槽对EFP形成尾翼的影响？[J].爆破器材,2014(6):11-15. |
| 作者姓名： | 郭帅 李小军 于小洁 陈智刚 裴思行 付建平 |
| 作者单位： | 1. 中北大学地下目标毁伤技术国防重点学科实验室 山西太原,030051 2. 中国人民解放军防化研究院 北京,102205 3. 总装北京军代局 北京,100042 |
| 基金项目： | 2014年山西省研究生优秀创新项目资助 |
| 摘 要： | 为了研究内层药型罩周向对称开槽对爆炸成型弹丸（ EFP）形成尾翼的影响,利用LS-DYNA显示动力分析有限元程序,采用Lagrange算法,对双层药型罩聚能装药的成型过程进行数值模拟。对不同开槽参数的数值模拟结果进行对比分析,选择数值模拟最佳结果进行试验验证。数值模拟与试验研究所得结论基本吻合。结果表明：内层药型罩周向对称开槽结构能够形成带尾翼的串联EFP。当L/Da ＝0.20、W/Da ＝0.05时（ Da 为装药直径,L为开槽长度、W为开槽宽度）,前后EFP长径比最大,带尾翼的串联EFP的成型效果最佳。 |
| 关 键 词： | 聚能装药 双层药型罩 爆炸成型弹丸 尾翼 数值模拟 explosively formed projectile ( EFP) |
Influence of Inner Liner with Grooves of Double-layer Liners on the Formation of EFP with Fins |
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| GUO Shuai,LI Xiaojun,YU Xiaojie,CHEN Zhigang,PEI Sixing,FU Jianping.Influence of Inner Liner with Grooves of Double-layer Liners on the Formation of EFP with Fins[J].Explosive Materials,2014(6):11-15. | |
| Authors: | GUO Shuai LI Xiaojun YU Xiaojie CHEN Zhigang PEI Sixing FU Jianping |
| Affiliation: | GUO Shuai, LI Xiaojun, YU Xiaojie, CHEN Zhigang, PEI Sixing, FU Jianping (1.National Defense Key Laboratory of Underground Damage Technology, North University of China (Shanxi Taiyuan,030051 ) 2.Researeh Institute of Chemical Defense, PLA( Beijing, 102205) 3.The assembly of Beijing Army Generation Bureau(Beijing, 100042) |
| Abstract: | In order to study the influence of inner liner with grooves in circumferential symmetryon double-layer shaped charge forming explosively formed projectile（ EFP） with fins, the formation process of shaped charge assembled with double-layer liners was simulated by using finite element software LS-DYNA and Lagrange algorithm. Numerical results of grooves in different sizes on inner liner were analyzed, and the optimized result was selected for experimental studies. Simu-lated results are in good agreement with experiments. It is shown that the double-layer liners with grooves on inner liner can form EFP with fins. When L/Da =0. 2 and W/Da =0. 05（Da is the charge diameter,L is the length of groove, and W is the width of groove） , the length-diameter radios of the front and the back EFP are the largest, and the formation of tandem EFP with fins is the best. |
| Keywords: | KEY WORDS] shaped charge double-layer liners explosively formed projectile ( EFP) fins numerical simulation |
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