高铝含量铝箔膜炸药与铝粉炸药水下爆炸性能的对比分析

万晓智 马宏昊 沈兆武 陈伟

万晓智, 马宏昊, 沈兆武, 陈伟. 高铝含量铝箔膜炸药与铝粉炸药水下爆炸性能的对比分析[J]. 高压物理学报, 2016, 30(1): 42-48. doi: 10.11858/gywlxb.2016.01.007
引用本文: 万晓智, 马宏昊, 沈兆武, 陈伟. 高铝含量铝箔膜炸药与铝粉炸药水下爆炸性能的对比分析[J]. 高压物理学报, 2016, 30(1): 42-48. doi: 10.11858/gywlxb.2016.01.007
WAN Xiao-Zhi, MA Hong-Hao, SHEN Zhao-Wu, CHEN Wei. A Comparative Analysis of Underwater Explosion Properties for High-Content Aluminum Foil and Aluminum Powder Explosives[J]. Chinese Journal of High Pressure Physics, 2016, 30(1): 42-48. doi: 10.11858/gywlxb.2016.01.007
Citation: WAN Xiao-Zhi, MA Hong-Hao, SHEN Zhao-Wu, CHEN Wei. A Comparative Analysis of Underwater Explosion Properties for High-Content Aluminum Foil and Aluminum Powder Explosives[J]. Chinese Journal of High Pressure Physics, 2016, 30(1): 42-48. doi: 10.11858/gywlxb.2016.01.007

高铝含量铝箔膜炸药与铝粉炸药水下爆炸性能的对比分析

doi: 10.11858/gywlxb.2016.01.007
基金项目: 

国家自然科学基金 51374189

国家自然科学基金 51174183

详细信息
    作者简介:

    万晓智(1986-), 男, 硕士研究生, 主要从事含能材料及爆炸力学研究.E-mail:wxz1986@mail.ustc.edu.cn

    通讯作者:

    马宏昊(1980-), 男, 博士, 副教授, 主要从事爆破器材与工业安全及爆炸力学研究.E-mail:hhma@ustc.edu.cn

  • 中图分类号: O383.1

A Comparative Analysis of Underwater Explosion Properties for High-Content Aluminum Foil and Aluminum Powder Explosives

  • 摘要: 为研究铝箔膜炸药的爆炸性能, 将铝箔膜与RDX炸药均匀混合并压制成型, 得到高铝含量的铝箔膜炸药, 与铝粉炸药形成对比, 进行水下爆炸实验。通过实验测得两种炸药在不同距离处的冲击波压力时程, 分析冲击波压力峰值、冲量、比冲击波能、气泡脉动周期、比气泡能和总能量等主要参数的差异。研究表明:铝箔膜炸药压力峰值的衰减速率低于铝粉炸药, 冲量和比冲击波能与铝粉炸药相当; 由于铝箔膜的比表面积比铝粉小, 纯度相对较高, 气泡脉动周期相对较长, 因此铝箔膜炸药的比气泡能乃至总能量均略高于铝粉炸药。

     

  • 图  炸药样品实物

    Figure  1.  Explosive samples

    图  水下爆炸实验示意图

    Figure  2.  Experimental setup of underwater explosion

    图  铝箔膜炸药的压力时程曲线

    Figure  3.  Pressure-time curves of aluminum foil explosives

    图  冲击波压力峰值的拟合曲线

    Figure  4.  Fitted curves of shock wave peak pressure of explosives

    图  炸药冲击波冲量拟合曲线

    Figure  5.  Fitted impulse curves of explosives

    图  炸药的比冲击波能

    Figure  6.  The specific shock wave energy of explosives

    图  炸药的比气泡能

    Figure  7.  The specific bubble energy of explosives

    图  炸药的总能量

    Figure  8.  The total energy of explosives

    表  1  炸药配方

    Table  1.   Formulation of explosives

    Explosive No. Mass fraction/(%) Density/(g/cm3)
    RDX Wax NC Al foil Al powder
    1 66.5 3.5 0 0 30.0 1.72-1.74
    2 57.0 3.0 0 0 40.0 1.74-1.77
    3 66.5 0 3.5 30.0 0 1.82-1.86
    4 57.0 0 3.0 40.0 0 1.88-1.91
    下载: 导出CSV

    表  2  炸药压力峰值和冲量的拟合系数

    Table  2.   Fitted coefficients of peak pressure and impulse of explosives

    Explosive wAl/(%) a/(MPa) b λ φ
    Aluminum powder explosive 30 930.125 80 -1.019 97 0.008 48 0.944 30
    40 556.086 36 -0.921 60 0.008 83 0.984 19
    Aluminum foil explosive 30 490.971 54 -0.873 82 0.009 02 0.939 70
    40 481.266 14 -0.889 29 0.008 43 0.937 54
    下载: 导出CSV

    表  3  炸药水下爆炸能量输出的相关参数

    Table  3.   Related parameters of underwater explosion energy output of explosives

    Explosive wAl/(%) ρT/(g/cm3) ρe, w/(g/cm3) D/(km/s) R/(m) Es/(kJ/g) Tb/(ms) Eb/(kJ/g) E/(kJ/g)
    Aluminum powder explosive 30 1.937 1.499 7.342 0.7 1.19 61.72 3.14 5.52
    0.9 1.16 61.72 3.15 5.47
    1.2 1.13 61.42 3.09 5.35
    1.5 1.08 61.65 3.14 5.30
    40 2.019 1.421 7.183 0.7 1.06 62.13 3.21 5.30
    0.9 1.01 62.36 3.23 5.21
    1.2 0.99 62.04 3.23 5.15
    1.5 0.98 62.21 3.21 5.14
    Aluminum foil explosive 30 1.977 1.625 7.706 0.7 1.21 63.06 3.34 5.89
    0.9 1.18 63.49 3.40 5.88
    1.2 1.14 62.81 3.30 5.71
    1.5 1.10 63.36 3.38 5.69
    40 2.056 1.602 7.504 0.7 1.04 62.71 3.38 5.53
    0.9 1.02 63.06 3.36 5.46
    1.2 0.99 62.71 3.33 5.39
    1.5 0.99 62.91 3.34 5.38
    下载: 导出CSV
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  • 收稿日期:  2014-09-26
  • 修回日期:  2014-12-15

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