| 异型弹芯斜侵彻靶板的数值分析 |
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| 引用本文： | 荣光,薛晓中,孙传杰,杨云斌.异型弹芯斜侵彻靶板的数值分析[J].弹道学报,2009,21(1). |
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| 作者姓名： | 荣光 薛晓中 孙传杰 杨云斌 |
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| 作者单位： | 1. 南京理工大学,瞬态物理国家重点实验室,南京,210094
2. 中国工程物理研究院,结构力学所,四川,绵阳,621900 |
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| 基金项目： | 国家自然科学基金委员会、中国工程物理研究院NSAF联合基金 |
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| 摘 要： | 分析了高速撞击过程中不同入射角的异型弹芯的斜侵彻运动.结合异型弹芯侵彻靶板试验,建立了三维有限元计算模型,应用有限元软件ANSYS/LS-DYNA进行仿真计算,得到速度为1.5 km/s时靶板侵彻变形过程中的应力分布图,给出了碰撞过程中任意时刻的速度、加速度及能量的变化曲线.根据仿真结果,得到异型弹芯入射角与侵彻深度的变化曲线,与试验进行了对比,数值结果与试验结果吻合较好.
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| 关 键 词： | 异型弹芯 斜侵彻 数值模拟 有限元 |
Numerical Analysis of a Non-circular Cross-sectional Projectile Oblique Penetrating Into Target |
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| RONG Guang,XUE Xiao-zhong,SUN Chuan-jie,YANG Yun-bin.Numerical Analysis of a Non-circular Cross-sectional Projectile Oblique Penetrating Into Target[J].Journal of Ballistics,2009,21(1). |
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| Authors: | RONG Guang XUE Xiao-zhong SUN Chuan-jie YANG Yun-bin |
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| Affiliation: | 1.National Key Laboratory of Transient Physics;NUST;Nanjing 210094;China;2.Institute of Structural Mechanics;China Academy of Engineering Physics;Mianyang 621900;China |
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| Abstract: | The oblique penetration movement of a non-circular cross-sectional projectile was analyzed under different incident angle.Finite element simulation of the projectile was performed on the basis of experiments by ANSYS/LS-DYNA.The stress distribution of target deformation and the changing curve of velocity,acceleration and energy at any assumed moment were obtained.Penetration depth was calculated when initial velocity was 1.5 km/s,and its changing curve was obtained under different incident angle.The results... |
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| Keywords: | non-circular cross-sectional projectile oblique penetration numerical simulation finite element |
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