| 钨合金长杆弹侵彻半无限钢靶的数值模拟及分析 |
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| 引用本文： | 兰彬,文鹤鸣.钨合金长杆弹侵彻半无限钢靶的数值模拟及分析[J].高压物理学报,2008,22(3). |
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| 作者姓名： | 兰彬 文鹤鸣 |
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| 作者单位： | 中国科学技术大学中国科学院材料力学行为和设计国家重点实验室,安徽合肥,230027 |
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| 摘 要： | 利用显式动力有限元程序ANSYS/LS=DYNA，采用ALE方法和Steinberg本构模型，对钨合金长杆弹侵彻半无限厚钢靶进行了数值模拟，给出了侵彻过程4个阶段的完整图像和相关物理量的时程变化曲线，分析了弹、靶的压力分布、质点速度以及材料的流动特性。结果表明：在较大速度范围内，模拟计算的侵彻深度与实验结果吻合得很好；沿侵彻轴线，弹靶交界面附近的材料行为主要由静水压力控制。
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| 关 键 词： | 长杆弹 半无限靶 侵彻 Steinberg模型 数值模拟 |
| 收稿时间： | 2008-02-08; |
Numerical Simulation and Analysis of the Penetration of Tungsten-Alloy Long Rod into Semi-Infinite Armor Steel Targets |
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| LAN Bin,WEN He-Ming.Numerical Simulation and Analysis of the Penetration of Tungsten-Alloy Long Rod into Semi-Infinite Armor Steel Targets[J].Chinese Journal of High Pressure Physics,2008,22(3). |
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| Authors: | LAN Bin WEN He-Ming |
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| Institution: | CAS Key Laboratory for Mechanical Behavior and Design of Materials;University of Science and Technology of China;Hefei 230027;China |
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| Abstract: | Numerical simulation of the penetration of tungsten alloy long rod into semi-infinite armor steel targets is performed with ALE method and Steinberg constitutive model coupled in ANSYS/LS-DYNA finite element code.The configurations of four different phases in the penetration process and the changes of relevant physical parameters with time are given.The distribution of pressure,particle velocity and the material flow characteristics of both the penetrator and the targets are analyzed.It is revealed that the... |
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| Keywords: | long rod penetrator semi-infinite target penetration Steinberg model numerical simulation |
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