| 夹层聚能装药作用过程的数值模拟 |
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| 引用本文： | 张先锋,丁建宝,赵晓宁. 夹层聚能装药作用过程的数值模拟[J]. 爆炸与冲击, 2009, 29(6): 617-624. DOI: 10.11883/1001-1455(2009)06-0617-08 |
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| 作者姓名： | 张先锋 丁建宝 赵晓宁 |
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| 作者单位： | 1.南京理工大学智能弹药技术国防重点学科实验室，江苏 南京 210094； |
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| 基金项目： | 南京理工大学青年学者基金 |
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| 摘 要： | 基于凝聚炸药冲击起爆的Lee-Tarver模型，利用AUTODYN有限元计算软件对夹层聚能装药作用过程进行了数值模拟。分别对夹层聚能装药爆轰波形传播过程及其特性参数进行了数值计算,对典型聚能装药采用单一结构装药、夹层装药的射流成型过程进行了数值研究,最后对不同爆速炸药匹配关系的夹层聚能装药射流参数进行了计算分析。计算结果表明,相对于单一结构装药，夹层装药射流头部速度提高了20%,夹层聚能装药能有效提高聚能金属射流头部速度、提高侵彻深度、增加炸药装药的作功能力。
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| 关 键 词： | 爆炸力学 夹层装药 AUTODYN有限元软件 聚能装药 超压爆轰 |
Numerical simulation of double layer shaped charge |
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| ZHANG Xian-feng,DING Jian-bao,ZHAO Xiao-ning. Numerical simulation of double layer shaped charge[J]. Explosion and Shock Waves, 2009, 29(6): 617-624. DOI: 10.11883/1001-1455(2009)06-0617-08 |
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| Authors: | ZHANG Xian-feng DING Jian-bao ZHAO Xiao-ning |
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| Affiliation: | 1.Ministerial Key Laboratory of ZNDY, Nanjing University of Science & Technology, Nanjing 210094, Jiangsu, China;2.Yongfeng Machinery Co Ltd, Huai’an 211722, Jiangsu, China |
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| Abstract: | The finite element code AUTODYN was used to numerically simulate the detonation processes of double layer shaped charges.The shock initiation of the inner layer charge was described by the Lee-Tarver ignition and growth model.Detonation wave propagation processes of the double layer shaped charges were discussed by the numerical results and the corresponding characteristic parameters were obtained.Jet formation processes of the typical single and double layer shaped charges were numerically presented,and je... |
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| Keywords: | mechanics of explosion double layer charge finite element program of AUTODYN shaped charge overdriven detonation (ODD) |
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