铝纤维对黑索今水下爆炸性能的影响

林谋金; 马宏昊; 沈兆武; 焦龙

doi:10.11883/1001-1455(2014)03-0379-06

铝纤维对黑索今水下爆炸性能的影响

doi: 10.11883/1001-1455(2014)03-0379-06

中国科学技术大学近代力学系，安徽合肥 230027

基金项目: 国家自然科学基金重点项目（51134012）；国家自然科学基金面上项目（51174183）

详细信息

作者简介:
林谋金(1985—), 男, 博士研究生

通讯作者:
Ma Hong-hao, hhma@ustc.edu.cn

中图分类号: O381
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- 被引次数: 0
出版历程
- 收稿日期: 2012-10-17
- 修回日期: 2012-12-22
- 刊出日期: 2014-05-25

Effect of aluminum fiber on underwater detonation performance of RDX

Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, Anhui, China

Funds: Supported by the National Natural Science Foundation of China (51134012, 51174183)

摘要

摘要: 将铝纤维添加到RDX中得到新型非理想炸药，并与RDX进行水下爆炸对比实验，得到2种炸药在不同位置的压力时程曲线，经过分析计算得到两者水下爆炸的冲击波压力峰值、冲量、冲击波能、气泡脉动周期以及气泡能。结果表明：距离药柱相同位置处，铝纤维炸药的压力峰值低于RDX，铝纤维炸药的冲击波冲量高于RDX，其差值受离药柱的距离影响不大。与RDX相比，铝纤维炸药的比冲击波能降低了2%~5.2%，比气泡能提高了9.4%~23.36%，总能量平均提高了3.5%。铝纤维炸药比气泡能与总能量的比值为55%~60%，高于RDX的50%~53%，其总能量与爆热比值为74%~84%，低于RDX的89%~95%。
- 爆炸力学 /
- 冲量 /
- 水下爆炸 /
- 铝纤维炸药 /
- 比冲击波能 /
- 比气泡能
Abstract: A new non-ideal explosive was obtained by adding aluminum fiber to RDX.Pressure-time curves were measured in different regions by underwater explosion experiments of aluminum fiber explosive and RDX.Peak pressure, impulse, shock wave energy, bubble impulsion period and bubble energy were obtained by analyzing the curves.The peak pressure of the new explosive is lower than that of RDX in same regions.The shock wave impulse becomes lager and the distance does not much affect the difference.Compared with RDX, the specific shock wave energy of the new explosive decreases by 2%~5.2%, the specific bubble energy rises by 9.4%~23.36%, the specific explosion energy increases averagely by 3.5%.The specific bubble energy is 55%~60% of explosion energy, which is higher than the ratio 50%~53% of RDX.The specific explosion energy is 74%~84% of explosion heat, which is lower than the ratio 89%~95%of RDX.
- mechanics of explosion /
- impulse /
- underwater detonation /
- aluminum fiber explosive /
- specific shock wave energy /
- specific bubble energy

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图 1 水下爆炸实验示意图

Figure 1. Assembly experimental system of underwater explosion

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图 2 2种炸药压力时程曲线

Figure 2. Pressure-time curves of two different types of explosive

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图 3 2种炸药压力-R/R₀曲线

Figure 3. Pressure-R/R₀ curves of two different types of explosive

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图 4 2种炸药冲击波冲量-R/R₀曲线

Figure 4. Impulse-R/R₀ curves of two different types of explosive

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图 5 空中爆炸后遗留的铝纤维碎屑

Figure 5. Al fiber debris after air explosion

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表 1 2种炸药水下爆炸能量输出的相关参数

Table 1. Energy output parameters of two different explosives in underwater explosion

炸药	R/R₀	T_b/ms	E_s/ (MJ·kg^-1)	μ	E_b/ (MJ·kg^-1)	E/ (MJ·kg^-1)	(E_b/E)/ %	Q_v^[12]/ (MJ·kg^-1)	(E/Q_v)/ %
铝纤维炸药	70	59.640	1.089	2.055	2.791	5.029	55.50	6.443	78.06
	90	62.617	1.054	2.054	3.252	5.418	60.03	6.443	84.09
	120	62.617	1.033	2.054	3.253	5.374	60.52	6.443	83.41
	150	59.640	0.985	2.055	2.776	4.799	57.84	6.443	74.48
RDX	70	58.040	1.169	2.209	2.551	5.135	49.69	5.378	95.47
	90	58.653	1.102	2.202	2.636	5.062	52.07	5.378	94.13
	120	58.653	1.044	2.202	2.629	4.929	53.34	5.378	91.64
	150	58.040	1.027	2.209	2.548	4.817	52.91	5.378	89.56
注：表中数值为实验平均值。

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