|本期目录/Table of Contents|

[1]沈飞,王胜强,王辉.不同约束条件下HMX基含铝炸药的慢烤响应特性[J].火炸药学报,2019,42(4):385-390.[doi:10.14077/j.issn.1007-7812.2019.04.012]
 SHEN Fei,WANG Sheng-qiang,WANG Hui.Slow Cook-off Response Characteristics of HMX-based Aluminized Explosive under Different Constraint Conditions[J].,2019,42(4):385-390.[doi:10.14077/j.issn.1007-7812.2019.04.012]
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不同约束条件下HMX基含铝炸药的慢烤响应特性()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
42卷
期数:
2019年第4期
页码:
385-390
栏目:
出版日期:
2019-08-31

文章信息/Info

Title:
Slow Cook-off Response Characteristics of HMX-based Aluminized Explosive under Different Constraint Conditions
作者:
沈飞 王胜强 王辉
西安近代化学研究所, 陕西 西安 710065
Author(s):
SHEN Fei WANG Sheng-qiang WANG Hui
Xi’an Modern Chemistry Research Institute, Xi’an 710065, China
关键词:
爆炸力学HMX基含铝炸药慢速烤燃约束强度泄压通道响应等级烤燃弹
Keywords:
explosion mechanicsHMX-based aluminized explosiveslow cook-offconstraint strengthpressure relief channelresponse gradecook-off bomb
分类号:
TJ55;O389
DOI:
10.14077/j.issn.1007-7812.2019.04.012
文献标志码:
-
摘要:
为了探索HMX基含铝炸药在不同约束下的慢烤响应特性,从而为战斗部缓释结构的设计提供依据,通过慢速烤燃试验分析了典型HMX基压装含铝炸药点火过程的特征,并采用调节烤燃弹壳体强度及泄压通道面积的方式研究了Φ25 mm×50 mm装药响应等级的差异。结果表明,慢烤条件下,该含铝炸药的点火过程包含3个阶段,即局部区域生成少量气体、无焰燃烧面扩展、明火燃烧,且持续时间较短;若烤燃弹未预设排泄通道,弹体内压力大于其临界压力值(96.5~193 MPa)时,则该炸药反应速率便迅速增长;若烤燃弹结构约束较强,则排泄通道面积与装药截面面积的比值需大于30%,才能使炸药仅发生燃烧反应,且壳体结构完好;但即便排泄通道的面积较大,该炸药点火后泄压过程仍能对强度较低的壳体具有明显破坏作用。
Abstract:
In order to explore the slow cook-off response characteristics of HMX-based aluminized explosive under different constraint conditions, and provide a basis for the design of the slow release structure of the warhead, the characteristics of the ignition process of the typical pressed HMX-based aluminized explosive were analyzed by slow cook-off test, and the response grade of the explosive was compared by adjusting the strength of the cook-off bomb shell and the section area of the pressure relief channel. The results show that the ignition process of the aluminized explosive during slow cook-off contains three stages, namely, a small amount of gas generation in local region, the expansion of the flameless combustion front, and the flaming combustion. For the cook-off bomb without the pressure relief channel, the reaction rate of the explosive charge will increase rapidly when the internal pressure is greater than a certain critical pressure (between 96.5 and 193 MPa). For the cook-off bombs with stronger constraint strength and the ratio of the pressure relief channel area to the cross-section area of the charge is greater than 30%, it will present the combustion reaction of the explosive and the structure of the bomb will be intact. Besides, even if the area of the pressure relief channel is larger enough, the shell with low strength can still be damaged during the pressure relief process.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-05-17;改回日期:2018-07-22。
基金项目:国防基础科研专项
作者简介:沈飞(1983-),男,副研究员,从事炸药爆轰性能及安全性研究。E-mail:shenf02@163.com
通讯作者:王辉(1977-),男,研究员,从事炸药爆轰性能及安全性研究。E-mail:wind_land@163.com
更新日期/Last Update: 1900-01-01