基于SPH的分层钢板抗半球头弹侵彻的数值模拟

强洪夫 孙新亚 王广 陈福振 石超 黄拳章

强洪夫, 孙新亚, 王广, 陈福振, 石超, 黄拳章. 基于SPH的分层钢板抗半球头弹侵彻的数值模拟[J]. 高压物理学报, 2018, 32(5): 055102. doi: 10.11858/gywlxb.20170664
引用本文: 强洪夫, 孙新亚, 王广, 陈福振, 石超, 黄拳章. 基于SPH的分层钢板抗半球头弹侵彻的数值模拟[J]. 高压物理学报, 2018, 32(5): 055102. doi: 10.11858/gywlxb.20170664
QIANG Hongfu, SUN Xinya, WANG Guang, CHEN Fuzhen, SHI Chao, HUANG Quanzhang. Numerical Simulation of Anti-Penetration of Laminated Steel Plate by Hemispherical-Nosed Projectile Using SPH[J]. Chinese Journal of High Pressure Physics, 2018, 32(5): 055102. doi: 10.11858/gywlxb.20170664
Citation: QIANG Hongfu, SUN Xinya, WANG Guang, CHEN Fuzhen, SHI Chao, HUANG Quanzhang. Numerical Simulation of Anti-Penetration of Laminated Steel Plate by Hemispherical-Nosed Projectile Using SPH[J]. Chinese Journal of High Pressure Physics, 2018, 32(5): 055102. doi: 10.11858/gywlxb.20170664

基于SPH的分层钢板抗半球头弹侵彻的数值模拟

doi: 10.11858/gywlxb.20170664
基金项目: 

国家自然科学基金 51276192

国家重点基础研究发展计划(973计划)基金项目 61338

详细信息
    作者简介:

    强洪夫(1963-), 男, 博士, 教授, 博士生导师, 主要从事结构强度、固体发动机等方面的研究.E-mail:Qiang@263.net

    通讯作者:

    孙新亚(1993-), 男, 硕士研究生, 主要从事爆炸冲击等方面的研究.E-mail:1430167246@qq.com

  • 中图分类号: O385

Numerical Simulation of Anti-Penetration of Laminated Steel Plate by Hemispherical-Nosed Projectile Using SPH

  • 摘要: 随着高强度、高抗冲击特性钢结构在防护装甲、武器库防护门等军事领域得到广泛应用,钢结构的抗冲击性能成为研究的重点和热点。采用光滑粒子流体动力学方法(Smoothed Particle Hydrodynamics,SPH)对半球头弹撞击多层钢板的过程进行了数值模拟,并与实验对比,分析了半球头弹撞击后钢板的失效形式,得到了撞击点处钢板盘式隆起、蝶形破坏等过程,得到了钢板的von Mises应力分布以及半球头弹的剩余速度,验证了SPH方法在模拟钢板侵彻变形问题上的有效性。通过数值模拟,研究了钢体层数、钢体厚度对其抗侵彻特性的影响,研究表明:3 mm时单层钢板比多层钢板的防护能力强,9 mm时多层钢板比单层钢板的防护能力强,12 mm时多层钢板和单层钢板的防护能力相当。

     

  • 图  半球形弹体几何模型图

    Figure  1.  Geometric model of hemispherical-nosed projectile

    图  数值模拟模型图

    Figure  2.  Numerical simulation model

    图  半球形弹头侵彻3层金属靶板数值模拟

    Figure  3.  Numerical simulation of 3-layer plates impacted by hemispherical-nosed projectile

    图  半球形弹头撞击靶板实验和数值模拟对比

    Figure  4.  Experiment and numerical simulation of plates impacted by hemispherical-nosed projectile

    图  半球形弹头贯穿金属靶板后金属靶板中von Mises应力的分布

    Figure  5.  von Mises stress distribution in metal target after hemispherical-nosed projectile penetration

    图  半球形弹头撞击6 mm单层靶板实验和数值模拟对比

    Figure  6.  Experiment and numerical simulation of 6 mm plates impacted by hemispherical-nosed projectile

    图  6种工况下金属靶板被半球形弹头侵彻贯穿后的损伤

    Figure  7.  Damage in other 6 different target plates after impacted by hemispherical-nosed projectile

    图  靶板厚度为3 mm时弹体速度变化趋势

    Figure  8.  Missile velocity variation trend for 3 mm target plate

    图  靶板厚度为9 mm时弹体速度变化趋势

    Figure  9.  Missile velocity variation trend for 9 mm target plate

    图  10  靶板厚度为12 mm时弹体速度变化趋势

    Figure  10.  Missile velocity variation trend for 12 mm target plate

    表  1  Johnson-Cook本构模型参数

    Table  1.   Johnson-Cook constitutive model parameters

    A/MPa B/MPa n C m Tm/K ${{\dot p}_0}$ /s-1 cV/(J·kg-1·K-1) T0/K r
    300 426 0.34 0.015 1.0 775 1.0 875 300 0.1
    下载: 导出CSV

    表  2  6种不同工况的金属靶板尺寸表

    Table  2.   Six different conditions of metal target board sizes

    Example Number of layers Total thickness/mm Body velocity/(m·s-1)
    1 1 3 500
    2 3 3 500
    3 1 9 500
    4 3 9 500
    5 1 12 500
    6 3 12 500
    下载: 导出CSV
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出版历程
  • 收稿日期:  2017-10-22
  • 修回日期:  2017-11-13

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