[1]李宏伟,郭婉肖,王茂,等.高速撞击下温压炸药的响应敏感性[J].爆破器材,2020,49(05):7-13.[doi:doi:10.3969/j.issn.1001-8352.2020.05.002]
　LI Hongwei,GUO Wanxiao,WANG Mao,et al.Response Sensitivity of Thermobaric Explosive under High-speed Impact[J].EXPLOSIVE MATERIALS,2020,49(05):7-13.[doi:doi:10.3969/j.issn.1001-8352.2020.05.002]
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高速撞击下温压炸药的响应敏感性()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
49
期数:
2020年05
页码:
7-13
栏目:
基础理论
出版日期:
2020-10-05

文章信息/Info

Title:
Response Sensitivity of Thermobaric Explosive under High-speed Impact
文章编号:
5423
作者:
李宏伟; 郭婉肖; 王茂; 韩志伟; 陈坤; 王伯良
南京理工大学化工学院（江苏南京，210094）
Author(s):
LI Hongwei;  GUO Wanxiao;  WANG Mao;  HAN Zhiwei;  CHEN Kun;  WANG Boliang
School of Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
关键词:
温压炸药; 高速撞击; 临界点火速度; 燃烧特性
Keywords:
thermobaric explosive;  high-speed impact;  critical ignition velocity;  combustion characteristics
分类号:
TQ560.7
DOI:
doi:10.3969/j.issn.1001-8352.2020.05.002
文献标志码:
A
摘要:
采用自行设计的动态加载装置对HMX基、HMX/NTO基和HMX/FOX-7基3种温压炸药撞击响应规律进行了研究，获得炸药的临界点火速度，并通过密闭燃烧罐分析撞击后回收试样的燃烧特性。结果表明：3种温压炸药药柱在高速撞击下均经历了冲击、塑性变形、破碎飞散和点火反应阶段；HMX基、HMX/NTO基和HMX/FOX-7基温压炸药的临界点火速度分别为302.9、312.3 m/s和315.3 m/s，NTO和FOX-7能够提高温压炸药的临界点火速度；分析撞击后回收试样的燃烧特性发现，与HMX基温压炸药相比，HMX/NTO基和HMX/FOX-7基温压炸药升压时间分别增加了103.6%和103.3%，升压速率分别降低了17.3%和21.1%，且撞击后的燃烧速率显著降低。
Abstract:
The impact response laws of three thermobaric explosives, including HMX based, HMX/NTO based and HMX/FOX-7 based, were studied by using a self-designed high-speed impact device. Critical ignition velocity was obtained, and combustion characteristics of the recovered samples after impact were tested by the closed burner tank. The results show that all the three kinds of thermobaric explosives have experienced shock, plastic deformation, fragmentation and ignition reaction stages under high-speed impact conditions. Critical ignition velocity of HMX based thermobaric explosives is 302.9 m/s, and that of HMX/NTO based or HMX/FOX-7 based thermobaric explosives is 312.3 m/s or 315.3 m/s. The addition of insensitive explosives NTO and FOX-7 to the formulation can improve the critical ignition velocity, in which FOX-7 is more effective. Through analyzing combustion characteristics of recovered samples, it is found that compared to HMX-based thermobaric explosives, the pressure rising time of HMX/NTO based and HMX/FOX-7 based thermobaric explosives increase by 103.6% and 103.3% respectively. The pressure rising rate reduce by 17.3% and 21.1% respectively, which can significantly reduce the burning rate of thermobaric explosives after impact.

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备注/Memo

备注/Memo:
收稿日期：2019-10-28
基金项目：江苏省自然科学基金青年基金项目（BK20150780）；江苏高校优势学科建设工程资助项目
第一作者：李宏伟（1993－），男，硕士研究生，主要从事含能材料安全性研究。E-mail :lhwperhaps@163.com
通信作者：王伯良（1964－），男，教授，主要从事爆炸力学研究。E-mail:boliangwang@163.com
更新日期/Last Update: 2020-10-05