CHINESE JOURNAL OF ENERGETIC MATERIALS
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常温附近温度变化对炸药冲击起爆特征的影响(英)
作者:
作者单位:

(1. 中国工程物理研究院化工材料研究所, 四川 绵阳 621999; 2. 中国工程物理研究院安全与弹药研究中心, 四川 绵阳 621999)

作者简介:

TAN Kai-yuan(1987-), male, master, assistant researcher, research field: detonation and safety properties of energetic materials. e-mail: tanky@caep.cn

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基金项目:

National Natural Science Foundation of China ( 11372291)


Shock Initiation Characteristics of Explosives at Near-ambient Temperatures
Author:
Affiliation:

(1. Institute of Chemical Materials, CAEP, Mianyang 621999, China; 2. Robust Munitions Center, CAEP, Mianyang 621999, China)

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    摘要:

    为了研究常温附近温度变化对炸药冲击起爆特征的影响程度和规律,设计并建立了炸药局部加热和冷却装置,结合拉氏分析方法研究了HMX/TATB基复合高能炸药PBX-1和TATB基钝感高能炸药PBX-2在常温附近(5~75 ℃)的冲击起爆压力成长过程。基于实验结果,利用点火增长模型对两种炸药的冲击起爆过程进行了数值模拟。结果表明,随着温度升高(5~75 ℃),炸药的冲击起爆压力成长过程均逐渐变快,到爆轰距离变短,点火增长模型中的反应速率参数G1变大,说明两种炸药随温度的升高对冲击变得更敏感,常温附近温度变化对炸药安全性的影响不能忽略。

    Abstract:

    To study the influence extent and law of near-ambient temperature changes on shock initiation characteristics of explosives, an experimental device with local heating and cooling to explosive was designed and established. Combined with Lagrangian analysis method, the growth process of shock initiation pressure at the near room temperature from 5 ℃ to 75 ℃ for two explosives (PBX-1: a HMX/TATB composite explosive; PBX-2: a TATB based IHE) was studied. Based on the experimental results, numerical simulation of the shock initiation process for two kinds of explosives was performed by the model of ignition growth. The results show that as temperature changing from 5 ℃ to 75 ℃, the growth of shock-initiation pressure of two kinds of explosives is gradually changing fast, the run distance to detonation becomes shorter and the reaction rate parameter G1 in the ignition growth model becomes larger, indicating that the two explosives become more sensitive to shock as near-ambient temperature increasing, the effects of near-ambient temperature changes on safety of explosives can not be ignored.

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引用本文

谭凯元,文尚刚,韩勇.常温附近温度变化对炸药冲击起爆特征的影响(英)[J].含能材料, 2016, 24(9):905-910. DOI:10.11943/j. issn.1006-9941.2016.09.015.
TAN Kai-yuan, WEN Shang-gang, HAN Yong. Shock Initiation Characteristics of Explosives at Near-ambient Temperatures[J]. Chinese Journal of Energetic Materials, 2016, 24(9):905-910. DOI:10.11943/j. issn.1006-9941.2016.09.015.

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历史
  • 收稿日期: 2015-07-19
  • 最后修改日期: 2015-12-27
  • 录用日期: 2016-01-11
  • 在线发布日期: 2016-09-19
  • 出版日期: 2016-10-10