用组合式电磁粒子速度计研究一种活性材料的反应特性

李金河; 訾攀登; 张旭; 张蓉

doi:10.11858/gywlxb.2017.03.013

用组合式电磁粒子速度计研究一种活性材料的反应特性

doi: 10.11858/gywlxb.2017.03.013

1.
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重点实验室, 四川绵阳 621999
2.
中国工程物理研究院研究生部, 四川绵阳 621999

详细信息

作者简介:
李金河(1979—), 男, 本科, 主要从事炸药爆轰以及安全性相关研究.E-mail:leejinhe103@163.com

中图分类号: O389
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出版历程
- 收稿日期: 2016-09-03
- 修回日期: 2016-10-27

Reaction Characteristics of Reactive Material Investigated by Embedded Electromagnetic Velocity Gauges

1.
National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, China
2.
Graduate School of China Academy of Engineering Physics, Mianyang 621999, China

摘要

摘要: 针对一种密度为5.2 g/cm³的活性材料, 用57 mm口径火药炮发射飞片撞击活性材料产生平面冲击波的加载方式, 首次采用组合式电磁粒子速度计测量了活性材料的粒子速度历程, 同时获得了活性材料内部冲击波的传播轨迹。研究表明, 在高速飞片撞击情况下活性材料可以发生反应, 但是反应速率较慢, 释能过程较长, 反应无法自持。将活性材料与PBX 9502炸药以及惰性材料的粒子速度历程进行对比发现, 活性材料的反应发展过程介于炸药与惰性材料之间。该研究方法可以用于研究其他活性材料反应特性, 相应的研究结果可以为活性破片战斗部的活性材料选择以及活性破片设计提供参考。
- 活性材料 /
- 反应特性 /
- 组合式电磁粒子速度计
Abstract: A reactive material with the density of 5.2 g/cm³ was impacted by high velocity flyers launched by a ∅57 mm powder gun and, for the first time in research, its particle velocities and shock wave histories were measured with embedded electromagnetic particle velocity gauges.The results indicated that, though the reactive material could be initiated when impacted by high velocity flyers, its reaction rate was slow and its energy release process lasted for a long time, the reaction is not self-sustained.By comparing the particle velocities of the reactive material with those of PBX 9502 and the inert material, we found that the reaction characteristics of the reactive material can be defined as somewhere between those of PBX 9502 and the inert material.This method can be applied to researches on the reaction characteristics of other reactive materials, and the corresponding experimental results provide reference to the materials choice and reactive fragments design for reactive fragment warheads.
- reactive materials /
- reaction characteristic /
- embedded electromagnetic particle velocity gauges

HTML全文

图 1 组合式电磁粒子速度计示意图

Figure 1. Sketch of assembled electromagnetic particle velocity gauges

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图 2 样品设计与安装示意图

Figure 2. Design and installation of sample

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图 3 实验装置示意图

Figure 3. Schematic of experimental setting

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图 4 粒子速度测量结果

Figure 4. Experimental results of particle velocities

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图 5 惰性介质的粒子速度^[14]

Figure 5. Particle velocities of inert material^[14]

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图 6 PBX 9502炸药的粒子速度^[14]

Figure 6. Particle velocities of PBX 9502^[14]

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图 7 冲击波示踪器测试结果

Figure 7. Experimental results of shock wave tracker

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图 8 冲击波速度变化情况

Figure 8. Development of shock wave velocity

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