主要成分对温压炸药能量输出特性的影响--典型配方案例研究

IF 5 Q1 ENGINEERING, MULTIDISCIPLINARY Defence Technology(防务技术) Pub Date : 2024-08-01 DOI:10.1016/j.dt.2024.03.008
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引用次数: 0

摘要

作为一种具有复合破坏能力的高效炸药,温压炸药的能量输出规律一直备受关注。为了研究主要成分对温压炸药爆炸特性的影响,我们选择了多种烈性炸药和氧化剂,配制了五种不同类型的温压炸药。然后分别在开放空间和封闭空间进行了试验。使用压力测量系统、高速照相机、红外热成像仪和多光谱温度测量系统记录压力、温度和火球。分析了不同成分对温压炸药爆炸特性的影响。结果表明,在开放空间,超压主要由配方中的高炸药含量决定。氧化剂的加入会降低爆炸超压,但会增加持续时间和火球的整体亮度。在封闭空间中,爆炸后形成的准静压与温度和气体产生量呈正相关。此外,研究还发现,壳体约束的不同也会改变热压爆炸药的后燃反应,从而影响其能量输出特性。聚氯乙烯(PVC)弹壳约束明显增加了过压,使火球燃烧更加剧烈。
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Effects of main components on energy output characteristics of thermobaric explosive — A case study of typical formulations

As a kind of high-efficiency explosive with compound destructive capability, the energy output law of thermobaric explosives has been receiving great attention. In order to investigate the effects of main components on the explosive characteristics of thermobaric explosives, various high explosives and oxidants were selected to formulate five different types of thermobaric explosive. Then they were tested in both open space and closed space respectively. Pressure measurement system, high-speed camera, infrared thermal imager and multispectral temperature measurement system were used for pressure, temperature and fireball recording. The effects of different components on the explosive characteristics of thermobaric explosive were analyzed. The results showed that in open space, the overpressure is dominated by the high explosives content in the formulation. The addition of the oxidants will decrease the explosion overpressure but will increase the duration and overall brightness of the fireball. While in closed space, the quasi-static pressure formed after the explosion is positively correlated with the temperature and gas production. In addition, it was found that the differences in shell constraints can also alter the afterburning reaction of thermobaric explosives, thus affecting their energy output characteristics. PVC shell constraint obviously increases the overpressure and makes the fireball burn more violently.

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来源期刊
Defence Technology(防务技术)
Defence Technology(防务技术) Mechanical Engineering, Control and Systems Engineering, Industrial and Manufacturing Engineering
CiteScore
8.70
自引率
0.00%
发文量
728
审稿时长
25 days
期刊介绍: Defence Technology, a peer reviewed journal, is published monthly and aims to become the best international academic exchange platform for the research related to defence technology. It publishes original research papers having direct bearing on defence, with a balanced coverage on analytical, experimental, numerical simulation and applied investigations. It covers various disciplines of science, technology and engineering.
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