RDX单晶炸药的冲击-斜波加载实验研究

种涛 莫建军 蔡进涛 王桂吉

种涛, 莫建军, 蔡进涛, 王桂吉. RDX单晶炸药的冲击-斜波加载实验研究[J]. 高压物理学报, 2020, 34(5): 051301. doi: 10.11858/gywlxb.20200529
引用本文: 种涛, 莫建军, 蔡进涛, 王桂吉. RDX单晶炸药的冲击-斜波加载实验研究[J]. 高压物理学报, 2020, 34(5): 051301. doi: 10.11858/gywlxb.20200529
CHONG Tao, MO Jianjun, CAI Jintao, WANG Guiji. Experimental Study on Shock-Ramp Wave Profiles in RDX Single Crystal Explosive[J]. Chinese Journal of High Pressure Physics, 2020, 34(5): 051301. doi: 10.11858/gywlxb.20200529
Citation: CHONG Tao, MO Jianjun, CAI Jintao, WANG Guiji. Experimental Study on Shock-Ramp Wave Profiles in RDX Single Crystal Explosive[J]. Chinese Journal of High Pressure Physics, 2020, 34(5): 051301. doi: 10.11858/gywlxb.20200529

RDX单晶炸药的冲击-斜波加载实验研究

doi: 10.11858/gywlxb.20200529
基金项目: 国家自然科学基金(11702276,11972031);冲击波物理与爆轰物理重点实验室基金(6142A03192007)
详细信息
    作者简介:

    种 涛(1986-),男,博士,助理研究员,主要从事动高压实验加载技术和材料动力学行为研究.E-mail:maoda318@163.com

    通讯作者:

    蔡进涛(1984-),男,博士,副研究员,主要从事含能材料动力学特性研究.E-mail:goldennoon@163.com

  • 中图分类号: O521.2; O347.3

Experimental Study on Shock-Ramp Wave Profiles in RDX Single Crystal Explosive

  • 摘要: 基于磁驱动加载装置CQ-4,完成了冲击-斜波复杂加载实验设计,开展了RDX单晶(210)、(100)两个晶向在不同加载压力下的冲击-斜波压缩实验,获得了RDX单晶样品与LiF窗口界面的速度历史曲线和纵波声速。实验结果显示:速度波剖面可分为冲击压缩、斜波压缩和卸载3部分;当冲击压力较高时,冲击压缩段中不再出现弹塑性转变以及4 GPa附近相变的速度特征波形;当冲击压力较低时,在冲击压缩段观测到了弹-黏塑性波形。

     

  • 图  冲击-斜波加载实验设计示意图

    Figure  1.  Schematic of shock-ramp wave loading experiment

    图  不同晶向RDX单晶的冲击-斜波加载实验速度曲线

    Figure  2.  Experimental data of shock-ramp wave loading on RDX single crystals with different orientations

    图  RDX单晶的纵波声速与文献结果的比较

    Figure  3.  Comparison of the longitudinal sound speed of RDX single crystal with the results of literatures

    表  1  实验条件

    Table  1.   Experimental conditions

    Exp. No.Sample 1-LiFSample 2-LiFLattice orientation
    of RDX
    U0/kVH0/mm
    ds/mmSize of LiF/
    (mm × mm)
    ds/mmSize of LiF/
    (mm × mm)
    Shot 11.101$\varnothing $10.0 × 4.0351.040$\varnothing $10.0 × 4.157(100)600.85
    Shot 21.295$\varnothing $10.0 × 4.0421.208$\varnothing $10.0 × 4.204(100)600.35
    Shot 31.104$\varnothing $10.0 × 4.075(100)500.17
    Shot 41.311$\varnothing $10.0 × 3.985(210)500.16
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  • 收稿日期:  2020-03-12
  • 修回日期:  2020-06-17

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