钽罩结构参数对EFP成型及侵彻性能的控制

郭腾飞 李伟兵 李文彬 洪晓文

郭腾飞, 李伟兵, 李文彬, 洪晓文. 钽罩结构参数对EFP成型及侵彻性能的控制[J]. 高压物理学报, 2018, 32(3): 035104. doi: 10.11858/gywlxb.20170667
引用本文: 郭腾飞, 李伟兵, 李文彬, 洪晓文. 钽罩结构参数对EFP成型及侵彻性能的控制[J]. 高压物理学报, 2018, 32(3): 035104. doi: 10.11858/gywlxb.20170667
GUO Tengfei, LI Weibing, LI Wenbin, HONG Xiaowen. Controlling Effect of Tantalum Liner's Structural Parameters on EFP Formation and Penetration Performance[J]. Chinese Journal of High Pressure Physics, 2018, 32(3): 035104. doi: 10.11858/gywlxb.20170667
Citation: GUO Tengfei, LI Weibing, LI Wenbin, HONG Xiaowen. Controlling Effect of Tantalum Liner's Structural Parameters on EFP Formation and Penetration Performance[J]. Chinese Journal of High Pressure Physics, 2018, 32(3): 035104. doi: 10.11858/gywlxb.20170667

钽罩结构参数对EFP成型及侵彻性能的控制

doi: 10.11858/gywlxb.20170667
基金项目: 

江苏省普通高校研究生科研创新计划项目 KYCX17_0390

江苏省"青蓝工程"项目 

详细信息
    作者简介:

    郭腾飞(1993—), 男, 硕士研究生, 主要从事聚能装药战斗部技术研究.E-mail:nustgtf@126.com

    通讯作者:

    李伟兵(1982—), 男, 博士, 副研究员, 博士生导师, 主要从事弹丸的终点效应与目标毁伤技术研究.E-mail:njustlwb@163.com

  • 中图分类号: TJ410.3

Controlling Effect of Tantalum Liner's Structural Parameters on EFP Formation and Penetration Performance

  • 摘要: 针对钽材料在成型装药战斗部中的应用问题,采用LS-DYNA仿真软件,研究了弧锥结合形钽药型罩结构参数(药型罩锥角、药型罩壁厚和药型罩圆弧半径)对EFP成型及侵彻性能的影响。揭示了各结构参数对EFP成型性能的控制规律,其中药型罩锥角控制EFP的轴向拉伸及径向收缩的能力,药型罩壁厚控制EFP的头部速度及尾部断裂与外张情况,药型罩圆弧半径控制EFP的头部形态及其绝对实心长度。获得了成型性能较佳的钽罩结构参数取值范围,其中药型罩锥角为143°~147°,药型罩壁厚、圆弧半径分别为0.024~0.026倍和0.7~0.8倍装药口径。各结构参数对EFP侵彻深度及侵彻孔径影响的主次顺序分别为:药型罩圆弧半径、药型罩锥角、药型罩壁厚和药型罩锥角、药型罩壁厚、药型罩圆弧半径。确定了EFP成型及侵彻性能均较佳的钽罩结构参数组合:药型罩锥角为145°,药型罩壁厚、圆弧半径分别为0.025、0.70倍装药口径。

     

  • 图  钽罩EFP战斗部结构图

    Figure  1.  Diagram of tantalum liner EFP warhead

    图  有限元模型

    Figure  2.  Finite element model

    图  EFP成型性能指标示意图

    Figure  3.  Schematic diagram of molding performance indicator of EFP

    图  头部速度随药型罩锥角的变化

    Figure  4.  Variation of vtip along α

    图  EFP成型指标随药型罩锥角的变化曲线

    Figure  5.  Variation of molding performance indicator of EFP along α

    图  头部速度随药型罩壁厚的变化

    Figure  6.  Variation of vtip along s

    图  EFP成型指标随药型罩壁厚的变化曲线

    Figure  7.  Variation of molding performance indicator of EFP along s

    图  头部速度随药型罩圆弧半径的变化

    Figure  8.  Variation of vtip along R

    图  EFP成型指标随药型罩圆弧半径的变化曲线

    Figure  9.  Variation of molding performance indicator of EFP along R

    图  10  不同因素水平下的EFP侵彻性能指标

    Figure  10.  Indicator of penetration performance from EFP along factors

    表  1  装药及壳体结构参数设计

    Table  1.   Design of charge and shell’s structural parameters

    Dk/mm H/mm β/(°) t/mm
    100 90 45 5
    下载: 导出CSV

    表  2  钽材料J-C本构方程参数[12]

    Table  2.   Parameters of J-C constitutive equation for tantalum[12]

    A/MPa B/MPa n C m
    142 164 0.314 8 0.057 0.883 6
    下载: 导出CSV

    表  3  空气、壳体及炸药材料参数[13]

    Table  3.   Parameters of air, shell and explosive[13]

    Air C γ0 S1 S2 S3 ρ/(kg·m-3)
    0.344 1.4 0 0 0 1.25
    Shell (45 steel) A/MPa B/MPa C n m ρ/(g·cm-3)
    496 434 0.014 0.26 1.03 7.83
    Explosive (JH-2) D/(km·s-1) pCJ/GPa A/GPa B/GPa G ρ/(g·cm-3)
    8.425 29.66 854.5 2.05 - 1.845
    下载: 导出CSV

    表  4  正交设计各因素水平表

    Table  4.   Orthogonal design at each level

    Level Factor
    α s R
    1 143 2.4 70
    2 145 2.5 75
    3 147 2.6 80
    下载: 导出CSV

    表  5  正交计算表(200 μs)

    Table  5.   Orthogonal table (200 μs)

    Project Factor Indicator of penetration performance
    α s R P/mm D/mm
    1 1 1 1 143.26 50.16
    2 1 2 2 137.37 52.44
    3 1 3 3 135.91 49.36
    4 2 1 2 131.38 49.24
    5 2 2 3 130.88 49.98
    6 2 3 1 148.01 50.12
    7 3 1 3 129.46 50.78
    8 3 2 1 131.77 52.06
    9 3 3 2 131.38 50.88
    下载: 导出CSV

    表  6  极差分析表

    Table  6.   Polar difference analysis

    Result of analysis Indicator of P Indicator of D
    α s R α s R
    K1 416.54 404.1 423.04 151.96 150.18 152.34
    K2 410.27 400.02 400.13 149.34 154.48 152.56
    K3 392.61 415.3 396.25 153.72 150.36 150.12
    K1/3 138.85 134.7 141.01 50.65 50.06 50.78
    K2/3 136.76 133.34 133.38 49.78 51.49 50.85
    K3/3 130.87 138.43 132.08 51.24 50.12 50.04
    S 7.98 5.09 8.93 1.46 1.43 0.81
    下载: 导出CSV

    表  7  优化方案下钽EFP的成型及侵彻性能参数

    Table  7.   Formation and penetration performance parameters of Ta EFP in optimization

    Formulation picture Parameter of forming performance Parameter of penetration performance
    vtip/(m·s-1) l/Lp d/Dp P/Dk D/Dk
    1 973 0.55 0.67 1.46 0.51
    下载: 导出CSV
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  • 收稿日期:  2017-10-30
  • 修回日期:  2017-11-16

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