HMX含量对PBT基推进剂撞击感度和非冲击点火反应特性的影响

杨年 马腾 过光飞 吴三震 夏语 黄寅生 刘大斌 徐森

杨年, 马腾, 过光飞, 吴三震, 夏语, 黄寅生, 刘大斌, 徐森. HMX含量对PBT基推进剂撞击感度和非冲击点火反应特性的影响[J]. 高压物理学报, 2024, 38(3): 035201. doi: 10.11858/gywlxb.20230824
引用本文: 杨年, 马腾, 过光飞, 吴三震, 夏语, 黄寅生, 刘大斌, 徐森. HMX含量对PBT基推进剂撞击感度和非冲击点火反应特性的影响[J]. 高压物理学报, 2024, 38(3): 035201. doi: 10.11858/gywlxb.20230824
YANG Nian, MA Teng, GUO Guangfei, WU Sanzhen, XIA Yu, HUANG Yinsheng, LIU Dabin, XU Sen. Influences of HMX Content on the Impact Sensitivity and Non-Shock Initiation Reaction Characteristics of PBT Based Propellants[J]. Chinese Journal of High Pressure Physics, 2024, 38(3): 035201. doi: 10.11858/gywlxb.20230824
Citation: YANG Nian, MA Teng, GUO Guangfei, WU Sanzhen, XIA Yu, HUANG Yinsheng, LIU Dabin, XU Sen. Influences of HMX Content on the Impact Sensitivity and Non-Shock Initiation Reaction Characteristics of PBT Based Propellants[J]. Chinese Journal of High Pressure Physics, 2024, 38(3): 035201. doi: 10.11858/gywlxb.20230824

HMX含量对PBT基推进剂撞击感度和非冲击点火反应特性的影响

doi: 10.11858/gywlxb.20230824
基金项目: 国家自然科学基金(12272184)
详细信息
    作者简介:

    杨 年(1994-),男,博士,主要从事含能材料反应机理研究. E-mail:youngnian@njust.edu.cn

    通讯作者:

    徐 森(1981-),男,博士,研究员,主要从事含能材料危险性分级与控制技术研究. E-mail:xusen@njust.edu.cn

  • 中图分类号: O381

Influences of HMX Content on the Impact Sensitivity and Non-Shock Initiation Reaction Characteristics of PBT Based Propellants

  • 摘要: 为了研究HMX的含量对PBT基推进剂撞击感度和非冲击点火反应特性的影响,开展了BAM落锤撞击感度试验、脆性试验和Susan试验。结果表明:随着HMX含量的增加,PBT基推进剂爆炸概率为50%时的特性落高(H50)减小,即推进剂的撞击感度随着HMX含量的增加而增大。对于HMX的质量分数分别为0、5%、10%和15%的PBT基推进剂,其临界撞击点火速度分别为168、147、136、131 m/s,临界撞击点火速度随HMX含量的增加而减小;在撞击速度为120~300 m/s的非冲击作用下,4种PBT基推进剂的反应等级为爆炸或部分爆轰,相同撞击速度下,HMX的质量分数为10%的PBT基推进剂相较于其他3种PBT基推进剂具有更剧烈的反应等级。

     

  • 图  试验装置示意图

    Figure  1.  Schematic diagram of the experimental setup

    图  4种PBT基推进剂点火的临界撞击速度

    Figure  2.  Critical impact ignition velocity of four kinds of PBT based propellants

    图  撞击前(a)和撞击50 μs后(b)PBT基推进剂图像(试样1)

    Figure  3.  Images of PBT based propellant before impact (a) and 50 μs after impact (b) (specimen 1)

    图  HMX的质量分数与PBT基推进剂的ΔE′的关系

    Figure  4.  Relationship between the mass fraction of HMX and ΔE′ of PBT based propellants

    图  不同撞击速度下4种PBT基推进剂的冲击波超压峰值

    Figure  5.  Shockwave overpressure peaks of four kinds of PBT based propellants after ignition with different impact velocities

    图  不同撞击速度下PBT基推进剂反应变化过程

    Figure  6.  Reaction changes of PBT based propellants after ignition with different impact velocities

    图  撞击后回收的钢体

    Figure  7.  Recovered steel body after impact

    图  撞击后钢体的剩余长度及动能

    Figure  8.  Residual lengths and kinetic energy of steel bodies after impact

    表  1  4种PBT基推进剂的组分

    Table  1.   Formulation of four kinds of PBT based propellants

    Specimenρ/(g·cm−3)wPBT/%wHMX/%wAP/%wAl/%wA3/%
    11.7819057195
    21.7819552195
    31.78191047195
    41.78191542195
    下载: 导出CSV

    表  2  4种PBT基推进剂的撞击感度测量结果

    Table  2.   Impact sensitivity test results of four kinds of PBT based propellants

    Specimen wHMX/% H50/cm E/J s/cm δ/%
    1 0 56.46 5.646 1.78
    2 5 50.83 5.083 2.03 11.08
    3 10 50.21 5.021 1.78 1.23
    4 15 49.82 4.982 1.69 0.78
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-12-20
  • 修回日期:  2024-03-17
  • 网络出版日期:  2024-05-25
  • 刊出日期:  2024-06-03

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