铝纤维炸药土中扩腔现场实验与数值模拟

万晓智 马宏昊 沈兆武 陈伟

万晓智, 马宏昊, 沈兆武, 陈伟. 铝纤维炸药土中扩腔现场实验与数值模拟[J]. 爆炸与冲击, 2016, 36(2): 236-241. doi: 10.11883/1001-1455(2016)02-0236-06
引用本文: 万晓智, 马宏昊, 沈兆武, 陈伟. 铝纤维炸药土中扩腔现场实验与数值模拟[J]. 爆炸与冲击, 2016, 36(2): 236-241. doi: 10.11883/1001-1455(2016)02-0236-06
Wan Xiaozhi, Ma Honghao, Shen Zhaowu, Chen Wei. Experiment and numerical simulation of explosion cavity in soil by aluminum fiber explosive[J]. Explosion And Shock Waves, 2016, 36(2): 236-241. doi: 10.11883/1001-1455(2016)02-0236-06
Citation: Wan Xiaozhi, Ma Honghao, Shen Zhaowu, Chen Wei. Experiment and numerical simulation of explosion cavity in soil by aluminum fiber explosive[J]. Explosion And Shock Waves, 2016, 36(2): 236-241. doi: 10.11883/1001-1455(2016)02-0236-06

铝纤维炸药土中扩腔现场实验与数值模拟

doi: 10.11883/1001-1455(2016)02-0236-06
基金项目: 

国家自然科学基金项目 51134012

国家自然科学基金项目 51174183

详细信息
    作者简介:

    万晓智(1986—),男,硕士研究生

    通讯作者:

    马宏昊,hhma@ustc.edu.cn

  • 中图分类号: O383.1

Experiment and numerical simulation of explosion cavity in soil by aluminum fiber explosive

  • 摘要: 为检验铝纤维炸药的做功能力,对铝纤维炸药土中爆炸扩腔现象进行实验,并采用ANSYS/LS-DYNA软件进行数值模拟,得出铝纤维炸药爆腔半径随药量变化的关系。结果表明,现场实验与数值模拟均能较好地表征铝纤维炸药土中爆炸扩腔的规律,铝纤维炸药相对于工业乳化炸药做功能力强,且由于其成型效果好等特点,应用于一些复杂的环境能够取得理想效果,可为类似工程提供参考。
  • 图  1  现场实验爆腔效果图

    Figure  1.  Explosion cavities in experiment

    图  2  计算模型

    Figure  2.  Calculation model

    图  3  计算得到的爆腔效果图

    Figure  3.  Explosion cavities by calculation

    图  4  铝纤维炸药爆腔半径与药量关系

    Figure  4.  Relation between the radius of explosion cavity and the weight of aluminum fiber explosive

    图  5  爆炸塔纠偏实验

    Figure  5.  Rectification of explosion tower

    表  1  实验中爆腔特征参数

    Table  1.   Characteristic parameters of explosion cavities in experiment

    药柱 炸药类型 m/g ρ/(g·cm-3) 药柱尺寸 H/cm 腔体尺寸 V/L
    r/cm h/cm a/cm b/cm
    1 铝纤维炸药 9.974 1.65 1.010 1.884 40 11.00 13.00 6.500
    2 铝纤维炸药 20.162 1.65 1.010 3.808 50 18.25 17.25 24.567
    3 铝纤维炸药 30.001 1.66 1.010 5.630 60 19.50 20.25 31.900
    4 乳化炸药 30.125 1.19 1.200 5.600 60 16.88 16.65 21.193
    下载: 导出CSV

    表  2  计算得到的爆腔特征参数

    Table  2.   Characteristic parameters of explosion cavities by calculation

    药柱 炸药类型 m/g ρ/(g·cm-3) H/cm 腔体尺寸 V/L V/V0 Q/Q0
    a/cm b/cm
    1 铝纤维炸药 9.9 1.65 40 12.5 13.5 8.836 2.24 2.15
    2 铝纤维炸药 19.8 1.65 50 16.0 17.0 18.230 2.31 2.15
    3 铝纤维炸药 29.7 1.65 60 18.50 19.0 27.239 2.30 2.15
    4 乳化炸药 28.8 1.19 60 13.8 14.4 11.487 1.00 1.00
    下载: 导出CSV

    表  3  不同炸药爆腔半径公式经验系数

    Table  3.   Empirical coefficients of the explosion cavity radius formulas for different explosives

    k′/(m·kg-1/3) 铝纤维炸药 乳化炸药
    数值模拟 实验 数值模拟 实验
    横向 0.592 0.617 0.450 0.535
    纵向 0.622 0.635 0.470 0.542
    下载: 导出CSV
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出版历程
  • 收稿日期:  2014-09-02
  • 修回日期:  2015-03-03
  • 刊出日期:  2016-03-25

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