Initiation of HNS-Ⅳ using a laser-driven multi-layer flyer
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摘要: 激光驱动飞片冲击起爆技术具有很强的抗电磁干扰能力和可以直接起爆钝感炸药等优点，能够满足现代战场对火工系统的高安全性和高可靠性要求。HNS-Ⅳ是最适合激光驱动飞片冲击起爆技术的药剂。本文中在6种不同激光能量下，测试了Al/Al2O3/Al复合飞片和Al单层飞片对HNS-Ⅳ药剂(装药密度为1.5 g/cm3)的冲击起爆情况。实验实现了激光驱动飞片对HNS-Ⅳ的成功起爆。在217~245 mJ激光能量范围内，激光驱动Al/Al2O3/Al复合飞片均可成功完全起爆HNS-Ⅳ药柱。Al单层飞片均未成功起爆HNS-Ⅳ药柱。飞片冲击压力对激光驱动飞片冲击起爆HNS-Ⅳ起决定作用。
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关键词:
- 爆炸力学 /
- 冲击起爆 /
- 激光驱动飞片 /
- HNS-Ⅳ /
- Al/Al2O3/Al
Abstract: Detonators based on laser-driven flyers are less vulnerable to the strong electromagnetic interference and can use insensitive secondary explosives as initial explosives. Additionally, this technology has advantages in terms of improved flexibility and reliability. Hexanitrostilbene (HNS-Ⅳ) is the ideal candidate for use in laser-driven flyer initiation. Experiments were carried out to study the initiation of HNS-Ⅳ with the density of 1.5 g/cm3, by using laser-driven Al/Al2O3/Al multi-layer flyers and Al single-layer flyer at different laser energies. Within 217-245 mJ laser energies, the HNS-Ⅳ can be successfully detonated by Al/Al2O3/Al multi-layer flyers, while not be detonated by Al single-layer flyers under the above laser energies.-
Key words:
- mechanics of explosion /
- shock initiation /
- laser-driven flyer /
- HNS-Ⅳ /
- Al/Al2O3/Al
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图 2 复合飞片冲击起爆实验后的药柱和药筒
Figure 2. The explosive and cartridge after the multi-layer flyer shock initiation
表 1 Al单层飞片冲击起爆结果
Table 1. Initiation results of laser-driven single flyers
发次 E/mJ v/(m·s-1) 起爆结果 1 147 3 312 否 2 175 3 996 否 3 202 4 238 否 4 217 4 480 否 5 231 4 865 否 6 245 5 128 否 
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表 2 Al/Al2O3/Al复合飞片冲击起爆结果
Table 2. Initiation results of laser-driven composite flyers
发次 E/mJ v/(m·s-1) 起爆结果 1 147 3 148 否 2 175 3 754 否 3 202 4 117 否 4 217 4 359 是 5 231 4 602 是 6 245 4 844 是
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