钨合金柱形弹超高速撞击水泥砂浆靶的侵彻深度研究

钱秉文 周刚 李进 李运良 张德志 张向荣 朱玉荣 谭书舜 景吉勇 张子栋

钱秉文, 周刚, 李进, 李运良, 张德志, 张向荣, 朱玉荣, 谭书舜, 景吉勇, 张子栋. 钨合金柱形弹超高速撞击水泥砂浆靶的侵彻深度研究[J]. 爆炸与冲击, 2019, 39(8): 083301. doi: 10.11883/bzycj-2019-0141
引用本文: 钱秉文, 周刚, 李进, 李运良, 张德志, 张向荣, 朱玉荣, 谭书舜, 景吉勇, 张子栋. 钨合金柱形弹超高速撞击水泥砂浆靶的侵彻深度研究[J]. 爆炸与冲击, 2019, 39(8): 083301. doi: 10.11883/bzycj-2019-0141
QIAN Bingwen, ZHOU Gang, LI Jin, LI Yunliang, ZHANG Dezhi, ZHANG Xiangrong, ZHU Yurong, TAN Shushun, JING Jiyong, ZHANG Zidong. Penetration depth of hypervelocity tungsten alloy projectile penetrating concrete target[J]. Explosion And Shock Waves, 2019, 39(8): 083301. doi: 10.11883/bzycj-2019-0141
Citation: QIAN Bingwen, ZHOU Gang, LI Jin, LI Yunliang, ZHANG Dezhi, ZHANG Xiangrong, ZHU Yurong, TAN Shushun, JING Jiyong, ZHANG Zidong. Penetration depth of hypervelocity tungsten alloy projectile penetrating concrete target[J]. Explosion And Shock Waves, 2019, 39(8): 083301. doi: 10.11883/bzycj-2019-0141

钨合金柱形弹超高速撞击水泥砂浆靶的侵彻深度研究

doi: 10.11883/bzycj-2019-0141
基金项目: 国家自然科学基金青年基金(11802248)
详细信息
    作者简介:

    钱秉文(1987- ),男,博士,副研究员,13572851949@163.com

  • 中图分类号: O385

Penetration depth of hypervelocity tungsten alloy projectile penetrating concrete target

  • 摘要: 为探索钨合金柱形弹超高速撞击水泥砂浆靶的侵彻深度随撞击速度变化规律,利用二级轻气炮开展了$\varnothing $3.45 mm×10.5 mm的克级93 W钨合金柱形弹以1.82~3.66 km/s的速度撞击水泥砂浆靶的实验,利用CT图像诊断技术获得了侵彻深度和残余弹长随撞击速度的变化规律,对超高速撞击过程进行了数值模拟,结合数值模拟结果进一步分析了超高速撞击物理过程。结果表明:(1)超高速撞击条件下成坑是弹坑+弹洞型;(2)侵深-速度曲线呈现先增大后减小的现象,在弹速2.6 km/s附近存在侵彻深度极大值,约为8.5倍弹长,相对于中低速侵彻的深度并没有显著优势。(3)通过基于数值模拟得到的弹靶界面压力时程曲线将侵彻过程分为4个阶段,其中准定常侵彻阶段和第三侵彻阶段是决定总侵深的主要阶段。(4)随撞击速度增加,弹体侵蚀逐渐剧烈,此时准定常侵彻阶段的侵深变化不大,而第三侵彻阶段中的刚体侵彻部分大幅降低,导致总侵深大幅降低,使总侵深曲线呈现先增大后减小的现象。
  • 图  1  超高速撞击实验安排示意图

    Figure  1.  Experimental set-up for hypervelocity impact experiment

    图  2  93W钨合金柱形弹体和水泥砂浆靶

    Figure  2.  Cylindrical tungsten alloy projectiles and concrete targets

    图  3  分幅相机拍摄的弹体飞行姿态

    Figure  3.  Framed photographs of projectile’s flight attitude

    图  4  超高速撞击条件下靶板破坏CT图像和成坑示意图

    Figure  4.  CT photographs and illustration of hypervelocity impacted crater

    图  5  侵彻深度随撞击速度变化关系

    Figure  5.  Variation of penetration depth with impact velocity

    图  6  不同撞击速度条件下的残余弹体

    Figure  6.  Residual projectiles at different impact velocities

    图  7  残余弹体长度随撞击速度变化规律

    Figure  7.  Variation of residual projectiles length with impact velocities

    图  8  侵深随速度变化规律的数值模拟结果与实验结果的对比

    Figure  8.  Penetration depth as compared between experiments and numerical simulations

    图  9  数值模拟得到的残余弹体长度与实验结果的对比

    Figure  9.  Residual projectile length as compared between experiments and numerical simulations

    图  10  弹体尾部速度、界面速度、界面压力、侵彻深度随时间的变化关系(${v_0} $=3 km/s)

    Figure  10.  Time histories of projectile tail velocity, interface velocity, interface pressure and the penetration depth (${v_0} $=3 km/s)

    图  11  数值模拟得到的准定常侵彻阶段和第三侵彻阶段的侵彻深度和总侵彻深度的关系

    Figure  11.  Relationship of penetration depth between quasi-steady stage, phase three stage and the total penetration obtained by simulation

    表  1  钨合金弹体超高速撞击水泥砂浆靶的成坑数据

    Table  1.   Cratering data of hypervelocity impact of tungsten alloy projectiles penetrating concrete target

    编号弹速/
    (km·s−1
    侵彻深度
    /mm
    弹丸余长/
    mm
    弹丸余长误差/
    mm
    编号弹速/
    (km·s−1
    侵彻深度
    /mm
    弹丸余长/
    mm
    弹丸余长误差/
    mm
    1-11.8267.01-92.9076.83.21.4
    1-21.9769.86.21.11-103.0866.500
    1-32.0280.586.71.21-113.1968.000
    1-42.3584.154.91.41-123.3663.800
    1-52.3982.55.60.11-133.3661.000
    1-62.6185.94.51.11-143.4665.000
    1-72.6684.04.20.11-153.6658.300
    1-82.8684.14.41.3
    下载: 导出CSV

    表  2  水泥砂浆的材料模型参数

    Table  2.   Material parameters of concrete

    G0/GPafc/MPaft/fcfs/fcABρ/(kg·m−3)MD1D2εf,minN
    16.742.70.10.181.41.42.20.50.0410.010.5
    下载: 导出CSV

    表  3  不同初始速度条件下的弹体速度、成坑深度和弹体长度的数值模拟结果

    Table  3.   Simulated projectiles velocity, penetration depth and residual projectile length at different impact velocities

    初始速度/
    (m·s−1
    准定常侵彻阶段结束时
    弹体速度/(m·s−1
    准定常侵彻阶段结束时
    弹体余长/mm
    准定常侵彻阶段侵彻
    深度/mm
    第三侵彻阶段侵彻
    深度/mm
    总侵深/
    mm
    1 7001 0506.528.038.566.5
    2 0001 1015.530.742.373.0
    2 3001 2014.532.346.278.5
    2 6501 2433.535.244.880.0
    3 0001 277034.942.677.5
    3 3001 325038.535.073.5
    3 4601 374036.133.069.1
    4 0001 394040.522.062.5
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-04-21
  • 修回日期:  2019-06-11
  • 刊出日期:  2019-08-01

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