应用SPH方法对平板铅飞层对碰凸起动载行为的数值模拟研究

袁帅; 胡海波; 张崇玉; 李平

doi:10.11858/gywlxb.2010.05.011

应用SPH方法对平板铅飞层对碰凸起动载行为的数值模拟研究

doi: 10.11858/gywlxb.2010.05.011

中国工程物理研究院流体物理研究所，冲击波物理与爆轰物理国防科技重点实验室，四川绵阳 621900

详细信息

通讯作者:
袁帅

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出版历程
- 收稿日期: 2009-09-03
- 修回日期: 2009-12-17
- 发布日期: 2010-10-15

Simulation on Head-on Bulging Dynamic Behavior of Lead Flyer with SPH Method

National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China

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Corresponding author: YUAN Shuai

摘要

摘要: 采用光滑粒子流体动力学（SPH）方法，模拟研究了两点起爆圆柱炸药驱动组合飞层（铝+铅）的动载行为，得到了爆轰波对碰区铅飞层类似射流状超前凸起的计算图像。模拟结果表明，对碰凸起呈现与实验结果相同的分层结构，且凸起头部具有散碎特征，根部相对密实。因此，SPH方法能够较好地模拟铅这类低熔点、低强度金属在对碰区中出现的散碎等破坏现象。
- 光滑粒子流体动力学 /
- 组合飞层 /
- 对碰凸起 /
- 铅
Abstract: Using the smoothed particle hydrodynamics (SPH) method, the dynamic behavior of assembly flyers (Al+Pb) driven by cylindrical explosive ignited at two opposite points of the surface was simulated numerically. The calculated images for the generation and evolvement of jet-like bulge of lead sample at collision zone were obtained. The bulge emerges multi-layer structures observed in the simulated graphs, which consist of scatter fragments in the head and relatively condense structure in the rear, are in agreement with the experimental results. Accordingly, the SPH method can well deal with the failure of the metals with low melting point and low strength in the counter strike region, such as lead.
- smoothed particle hydrodynamics (SPH) /
- assembled plates /
- bulging of collision /
- lead

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