基于物质点法的船体板架结构高速侵彻毁伤模式研究

王逸南 姚熊亮 王治 杨娜娜

王逸南, 姚熊亮, 王治, 杨娜娜. 基于物质点法的船体板架结构高速侵彻毁伤模式研究[J]. 爆炸与冲击, 2021, 41(10): 103301. doi: 10.11883/bzycj-2020-0134
引用本文: 王逸南, 姚熊亮, 王治, 杨娜娜. 基于物质点法的船体板架结构高速侵彻毁伤模式研究[J]. 爆炸与冲击, 2021, 41(10): 103301. doi: 10.11883/bzycj-2020-0134
WANG Yinan, YAO Xiongliang, WANG Zhi, YANG Nana. Different failure modes during the high-velocity penetration on the ship plate structure through material point method[J]. Explosion And Shock Waves, 2021, 41(10): 103301. doi: 10.11883/bzycj-2020-0134
Citation: WANG Yinan, YAO Xiongliang, WANG Zhi, YANG Nana. Different failure modes during the high-velocity penetration on the ship plate structure through material point method[J]. Explosion And Shock Waves, 2021, 41(10): 103301. doi: 10.11883/bzycj-2020-0134

基于物质点法的船体板架结构高速侵彻毁伤模式研究

doi: 10.11883/bzycj-2020-0134
基金项目: 国家自然科学基金(51779056,51879048)
详细信息
    作者简介:

    王逸南(1995- ),男,博士研究生,wanghuang@hrbeu.edu.cn

    通讯作者:

    姚熊亮(1963- ),男,博士生导师,教授,yaoxiongliang@hrbeu.edu.cn

  • 中图分类号: O383

Different failure modes during the high-velocity penetration on the ship plate structure through material point method

  • 摘要: 本文通过数值模拟的方法研究了截卵型弹体冲击下921A钢板的毁伤模式。 跟以往试验进行对比,发现数值结果与实验结果吻合良好。 在3种不同工况下,剩余速度与实验结果吻合良好,误差小于5%。随着弹着点位置的变化,加筋板的失效模式发生变化。击中靶板中心时,加强筋发生撕裂,目标板在左右两侧产生对称的花瓣型破坏模式。 随着弹着点位置的偏移,加强筋的撕裂程度逐渐减小,最后仅仅发生塑性应变。并且目标板上的破坏不再对称,左侧板的动态响应从花瓣破坏变为小面积断裂,最后仅保留塑性变形。右侧板始终产生花瓣型失效模式,但花瓣的数量和形式始终在变化。结果表明,物质点法可以很好地应用,并为今后舰船穿透研究提供参考。
  • 图  1  靶板结构[3]

    Figure  1.  Target plate[3]

    图  2  弹体结构[3]

    Figure  2.  Projectile[3]

    图  3  失效模型示意图

    Figure  3.  Sketch of the failure model

    图  4  剩余速度随3种不同冲击速度的变化情况

    Figure  4.  Variation of residual velocity with three different impact velocities

    图  5  弹着点位于小筋[3]

    Figure  5.  Impact point on small stiffener[3]

    图  6  弹着点位于纵横加筋[3]

    Figure  6.  Impact point on cross-stiffener stiffener [3]

    图  7  弹着点位于小筋

    Figure  7.  Impact point on small stiffener

    图  8  弹着点位于纵横加筋

    Figure  8.  Impact point on cross-stiffener stiffener

    图  9  主应力分布图

    Figure  9.  Principal stress distribution diagram

    图  10  剪切应力分布图

    Figure  10.  Shear stress distribution diagram

    图  11  弹着点位于小筋

    Figure  11.  Impact point on small stiffener

    图  12  弹着点位于纵横加筋

    Figure  12.  Impact point on cross-stiffener stiffener

    图  13  整体布置示意图

    Figure  13.  Overall layout diagram

    图  14  加强筋毁伤示意图

    Figure  14.  Stiffener damage diagram

    图  15  靶板整体毁伤示意图

    Figure  15.  Target damage diagram

    图  16  加强筋毁伤示意图

    Figure  16.  Stiffener damage diagram

    图  17  靶板整体毁伤示意图

    Figure  17.  Target damage diagram

    图  18  靶板的毁伤模式示意图

    Figure  18.  Stiffened target plate failure mode diagram

    图  19  弹着点位置偏移5 mm

    Figure  19.  The impact point is offset by 5 mm

    图  20  弹着点位置偏移6 mm

    Figure  20.  The impact point is offset by 6mm

    图  21  弹着点位置偏移7 mm

    Figure  21.  The impact point is offset by 7 mm

    图  22  弹着点位置偏移8 mm

    Figure  22.  The impact point is offset by 8 mm

    图  23  弹着点位置偏移9 mm

    Figure  23.  The impact point is offset by 9 mm

    图  24  弹着点位置偏移10 mm

    Figure  24.  The impact point is offset by 10 mm

    图  25  弹着点位置偏移11 mm

    Figure  25.  The impact point is offset by 11 mm

    图  26  弹着点位置偏移12 mm

    Figure  26.  The impact point is offset by 12 mm

    图  27  弹着点位置偏移13 mm

    Figure  27.  The impact point is offset by 13 mm

    图  28  弹着点位置偏移14 mm

    Figure  28.  The impact point is offset by 14 mm

    图  29  弹着点位置偏移5 mm

    Figure  29.  The impact point is offset by 5 mm

    图  30  弹着点位置偏移6 mm[2]

    Figure  30.  The impact point is offset by 6 mm[2]

    表  1  靶板材料参数数值[2-3]

    Table  1.   Material parameters used for target[2-3]

    泊松比A/MPaB/MPanCm$ \lambda $smax/MPatmax/MPa
    0.356857600.5870.0151.0271685342
    下载: 导出CSV

    表  2  剩余速度的数值和实验结果

    Table  2.   Numerical values and experimental results of residual velocity

    工况冲击速度/
    (m·s−1
    弹着点位置实验剩余速度/
    (m·s−1
    物质点剩余速度/
    (m·s−1
    距大筋/
    mm
    距小筋/
    mm
    1617.70.031.0574.9571.7
    2606.5583.8560.1
    3567.755.052.0526.8515.0
    下载: 导出CSV

    表  3  数值和实验无量纲数结果对比

    Table  3.   Comparison of numerical and experimental dimensionless number results

    工况无量纲数 $ \dfrac{{{v_r}}}{{{v_i}}} $误差/%
    实验数值
    10.9310.9260.5
    20.9630.9234.2
    30.9280.9082.2
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-05-06
  • 修回日期:  2020-12-04
  • 网络出版日期:  2021-09-18
  • 刊出日期:  2021-10-13

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