|本期目录/Table of Contents|

[1]李健,张勇,吴彦卓,等.AP粒度对HTPB推进剂撞击起爆影响的数值模拟[J].火炸药学报,2018,41(3):298-302.[doi:10.14077/j.issn.1007-7812.2018.03.015]
 LI Jian,ZHANG Yong,WU Yan-zhuo,et al.Numerical Simulation of Effects of AP Particle Size on Impact Initiation of HTPB Propellant[J].,2018,41(3):298-302.[doi:10.14077/j.issn.1007-7812.2018.03.015]
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AP粒度对HTPB推进剂撞击起爆影响的数值模拟()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
41卷
期数:
2018年第3期
页码:
298-302
栏目:
出版日期:
2018-06-29

文章信息/Info

Title:
Numerical Simulation of Effects of AP Particle Size on Impact Initiation of HTPB Propellant
作者:
李健 张勇 吴彦卓 梁彦 李泽雪
1. 92941部队, 辽宁 葫芦岛 125000;
2. 海军航空大学, 山东 烟台 264000;
3. 91404部队, 河北 秦皇岛 066000
Author(s):
LI Jian ZHANG Yong WU Yan-zhuo LIANG Yan LI Ze-xue
1. Unit 92941, Huludao Liaoning 125000, China;
2. Naval Aviation University, Yantai Shandong 264000, China;
3. Unit 91404, Qinhuangdao Hebei 066000, China
关键词:
AP粒度撞击爆炸数值模拟HTPB推进剂
Keywords:
APparticle sizeimpact explosionnumerical simulationHTPB propellant
分类号:
TJ55;V512
DOI:
10.14077/j.issn.1007-7812.2018.03.015
文献标志码:
-
摘要:
针对端羟基聚丁二烯(HTPB)复合固体推进剂受外力撞击爆炸问题,基于MATLAB软件开发了颗粒随机填充算法,通过在LS-DYNA平台上进行的二次开发,研究了高氯酸铵(AP)粒度对HTPB复合推进剂撞击起爆影响的数值模拟。结果表明,AP粒径为2~20 μm时,HTPB推进剂受撞击后爆炸概率最低;粒径达到330~340 μm时,受撞击后爆炸概率最高;通过细观层次研究发现,含AP颗粒的HTPB推进剂在撞击起爆前存在两次剧烈的应力应变和温度变化,通过对颗粒粒径范围在2~20 μm和330~340 μm时计算结果的比较,发现推进剂爆炸前的最大有效应变增大124%,最高温度增大13.14%;温升和应变的启动点和反应点分别加快了34.78%、10.98%和52.38%、28.57%。
Abstract:
Aiming at the impact explosion problem of hydroxyl terminated polybutadiene(HTPB) composite solid propellant induced by the external force, the particle random filling algorithm was developed based on MATLAB software, the numerical simulation of the effect of ammonium perchlorate (AP) particle size on the impact initiation of HTPB propellant was studied through the second development performed on the LS-DYNA platform. The results show that when AP particle size is 2-20 μm, the explosion probability of HTPB propellant induced by impact is the lowest. When AP particle size reaches 330-340 μm, the explosion probability induced by impact is the highest.Through the meso level study, it is found that the HTPB propellant containing AP particles has two severe stress-strain and temperature change before impact initiation. Through comparing the calculated results when the particle size range is 2-20 μm and 330-340 μm,it is found that the maximum effective strain before explosion increases by 124% and the maximum temperature increases by 13.14%, the starting point and reaction point of temperature rise and strain accelerate by 34.78%,10.98% and 52.38%,28.57%, respectively.

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备注/Memo

备注/Memo:
收稿日期:2018-01-24;改回日期:2018-05-12。
作者简介:李健(1991-),男,硕士,从事导弹系统试验与鉴定。E-mail:13358838873@163.com
更新日期/Last Update: 1900-01-01