组合装药的撞击安全性与内爆威力试验研究

张广华; 屈可朋; 沈飞; 王辉

doi:10.11858/gywlxb.20190735

组合装药的撞击安全性与内爆威力试验研究

doi: 10.11858/gywlxb.20190735

西安近代化学研究所，陕西西安　710065

基金项目: 国防基础科研专项（05020501）

详细信息

作者简介:
张广华(1987－) ，男，博士，助理研究员，主要从事毁伤理论与技术研究. E-mail：guanghua0611@sina.com

通讯作者:
王　辉（1977－），男，硕士，高级工程师，主要从事炸药爆轰性能研究. E-mail：land_wind@163.com

中图分类号: TJ55; O389
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出版历程
- 收稿日期: 2019-03-05
- 修回日期: 2019-03-18

Experimental Study on Impact Safety and Implosing Energy Release Characteristics of Composed Charge

Xi’an Modern Chemistry Research Institute, Xi’an 710065, China

摘要

摘要: 为了验证某组合装药的撞击安全性与内爆威力，开展了组合装药的大型落锤试验及爆炸罐内爆威力试验研究。结果表明：单一温压炸药在400 kg落锤作用下的临界落高为2.2 m，组合装药分别在2.2、2.3、2.5和2.7 m落高时均未发生爆炸反应，证明组合装药具有更好的撞击安全性；组合装药的初始冲击波超压峰值是单一温压炸药的61.9%，比冲量是单一温压炸药的99.4%，准静态压力峰值是单一温压炸药的94.5%。考虑到炸药在有限空间内爆炸的能量释放特性，将准静态压力峰值作为威力评价标准更为合适。试验结果证明组合装药的内爆威力与单一温压炸药相当。
- 组合装药 /
- 撞击安全性 /
- 内爆威力 /
- 比冲量 /
- 准静态压力
Abstract: To verify impact safety and implosion power of a composed charge, the drop hammer tests and implosion power experiments were conducted. The results show that critical height of the single thermo-baric explosive is 2.2 m under loading of 400 kg hammer, while the composed charge did not ignite under height from 2.2 m to 2.7 m, which means that the composed charge holds a better impact safety property. Peak overpressure of the composed charge was 61.9% of the single thermo-baric explosive, the impulse of the composed charge was 99.4% of the single thermo-baric explosive, and the peak quasi-static pressure of the composed charge was 94.5% of the single thermo-baric explosive. Considering energy release characteristics within a limited space, it is more suitable to use peak quasi-static pressure as an evaluation standard. The test results show that implosing energy release characteristics of the composed charge is almost the same as the single thermo-baric explosive.
- composed charge /
- impact safety /
- implosion power /
- specific impulse /
- quasi-static pressure

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图 1 落锤试验装置示意图

Figure 1. Schematic of drop hammer system

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图 2 组合装药排布

Figure 2. Assembly of composed charge

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图 3 典型落锤加载曲线

Figure 3. Typical loading curve of drop hammer

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图 4 真空爆炸罐外观

Figure 4. Picture of the vacuum explosion tank

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图 5 威力试验样品示意图

Figure 5. Schematic of the experimental samples used for explosion test

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图 6 真空爆炸罐示意图

Figure 6. Schematic of the vacuum explosion tank

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图 7 冲击波超压实测曲线

Figure 7. Measured blast wave overpressure curves

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图 8 不同装药的准静态压力变化曲线

Figure 8. Quasi-static pressure curves of different charges

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表 1 组合装药落锤试验结果

Table 1. Drop hammer experimental results of composed charge

No.	h/m	σ/MPa	t/ms	Response characteristics
1	2.2	829	5.54	No-ignition
2	2.2	827	6.01	No-ignition
3	2.3	839	5.55	No-ignition
4	2.3	837	5.54	No-ignition
5	2.5	881	5.63	No-ignition
6	2.5	875	5.82	No-ignition
7	2.7	902	5.77	No-ignition
8	2.7	895	5.57	No-ignition

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表 2 冲击波超压峰值及比冲量

Table 2. Blast wave overpressure and specific impulse

Explosive	${\Delta P/{\rm{MPa}}}$	Specific impulse/(Pa·s)
TNT	8.29	893
HA-1	12.75	1170
RAP-1	6.37	658
Dual charge	7.89	1110

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