| 基于SPH方法的球形弹丸撞击薄板研究 |
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| 引用本文： | 朱卫华.基于SPH方法的球形弹丸撞击薄板研究[J].科学技术与工程,2011,11(34):8391-8394. |
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| 作者姓名： | 朱卫华 |
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| 作者单位： | 河海大学理学院;河海大学水利水电工程学院 |
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| 基金项目： | 国家大学生创新性试验计划项日 |
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| 摘 要： | 基于显示中心差分计算格式,应用光滑粒子流体力学方法(SPH)模拟计算了直径为6.35 mm铝球正撞薄铝板的过程,并将计算结果与闪光X射线照相系统所拍摄的结果相比较。对比研究结果大致得出了球形弹丸内部应力波传播的规律。并定性验证了靶板厚度与球形弹丸变形与破碎间的规律。所得结论为进一步深入研究弹丸破碎以及Whipple防护结构撞击极限取相参数优化提供一定的依据。
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| 关 键 词： | 数值模拟 SPH 碎片 侵彻 |
| 收稿时间： | 8/28/2011 7:41:42 PM |
| 修稿时间： | 9/21/2011 8:47:43 AM |
SPH-based Numerical Simulation of Spherical Projectile Impact Thin Board |
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| zhuweihua.SPH-based Numerical Simulation of Spherical Projectile Impact Thin Board[J].Science Technology and Engineering,2011,11(34):8391-8394. |
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| Authors: | zhuweihua |
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| Institution: | 2 (College of Science1,College of Water Conservancy and Hydropower Engineering2, Hohai University,Nanjing 211100,P.R.China) |
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| Abstract: | Abstract:Based on the smoothed particle hydrodynamics method(SPH), we study the mechanical process of Aluminum ball debris which diameter is 6.35mm penetrate into aluminum plate, and compared with the results taken from calculation and from flash X-ray radiography system.The study obtained laws of the stress wave propagation internal spherical projectile. Qualitative validation of the law between target plate thickness and the deformation and fragmentation of the spherical projectile. The result can be used for the future penetration and Whipple protection issues. |
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