爆轰波对碰驱动下平面铅飞层对碰区动载行为实验研究

张崇玉; 胡海波; 李庆忠; 袁帅

doi:10.11858/gywlxb.2009.04.008

爆轰波对碰驱动下平面铅飞层对碰区动载行为实验研究

doi: 10.11858/gywlxb.2009.04.008

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

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通讯作者:
张崇玉

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出版历程
- 收稿日期: 2008-10-08
- 修回日期: 2009-02-16
- 发布日期: 2009-08-15

Experimental Study on Dynamic Behavior of Lead Plate Driven by Two Head-on Colliding Detonation Waves

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

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Corresponding author: ZHANG Chong-Yu

摘要

摘要: 采用高速光学照相和脉冲X光照相技术，对滑移爆轰波对碰驱动下平面铅飞层对碰区的动载行为进行了实验研究。实验结果显示，在爆轰波对碰区铅飞层出现了类似射流状超前凸起的现象，对碰区凸起呈现出速度和密度有明显差别的多层分区结构。凸起头部速度较高，运动过程中因自身的速度梯度及与周围空气的相互作用，呈现出明显的散碎、雾化特征，体密度远低于初始密度。凸起根部速度相对较低、密度较高，但随时间的推移仍迅速转变为非密实状态。对碰爆轰波的波剖面结构，以及材料的强度和冲击熔化可能是主导对碰区动载行为的主要因素。
- 爆轰波对碰 /
- 平面铅飞层 /
- 对碰区凸起 /
- 散碎雾化
Abstract: In order to investigate the configuration and mass distribution of collision bulging, dynamic behaviors of Pb plate driven by collision of head-on sliding detonation waves were characterized with high-speed frame photography and pulsed X-ray radiography. Experimental results showed that a bulging similar to a shaped charge jet were produced in the collision region, which appeared as a multi-zone structure across several layers. The tip of bulging with higher velocity had a characteristic of fragmentary and cavitation because of its speed gradient and the interaction with air, and its bulk density was much lower than the pre-shock initial density of Pb. Though the root of bulging had a lower velocity and a higher density relatively, it was also in non-dense state. It suggested that the collision of sliding detonation waves, strength of materials and shock melting might play a leading role in the bulging formation process.
- two head-on colliding detonation waves /
- lead plate /
- the bulging of collision region /
- fragmentary and cavitation

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参考文献(15)

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