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[1]沈瑞强,袁俊明,罗凯,等.升温加载下含LLM-105的RDX基浇注炸药热点火细观模拟[J].火炸药学报,2018,41(2):137-142.[doi:10.14077/j.issn.1007-7812.2018.02.006]
 SHEN Rui-qiang,YUAN Jun-ming,LUO Kai,et al.Microscopic Simulation on Thermal Ignition of RDX-based Cast Explosives Containing LLM-105 under Heat Loading[J].,2018,41(2):137-142.[doi:10.14077/j.issn.1007-7812.2018.02.006]
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升温加载下含LLM-105的RDX基浇注炸药热点火细观模拟()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
41卷
期数:
2018年第2期
页码:
137-142
栏目:
出版日期:
2018-04-27

文章信息/Info

Title:
Microscopic Simulation on Thermal Ignition of RDX-based Cast Explosives Containing LLM-105 under Heat Loading
作者:
沈瑞强 袁俊明 罗凯 刘玉存 张林炎 常双君 王建华
1. 中北大学地下目标毁伤技术国防重点学科实验室, 山西 太原 030051;
2. 中北大学环境与安全 工程学院, 山西 太原 030051
Author(s):
SHEN Rui-qiang YUAN Jun-ming LUO Kai LIU Yu-cun ZHANG Lin-yan CHANG Shuang-jun WANG Jian-hua
1. Fundamental Science on Underground Target Damage Technology Laboratory, North University of China, Taiyuan 030051, China;
2. School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
关键词:
LLM-105浇注炸药热点火细观模拟含能钝感剂
Keywords:
LLM-105cast explosivesthermal ignitionmicroscopic simulationenergetic deterrent
分类号:
TJ55;TQ56
DOI:
10.14077/j.issn.1007-7812.2018.02.006
文献标志码:
-
摘要:
为了解加入含能钝感剂2,6-二氨基-3,5-硝基吡嗪-1-氧化物(LLM-105)对RDX基浇注炸药热安全性的影响,根据LLM-105的不同含量和晶型,建立了含LLM-105的RDX基浇注炸药二维细观模型。利用有限元方法,考虑LLM-105和RDX的自放热反应,模拟了不同工况下边界升温速率为6 K/min的点火行为,分析了含LLM-105的RDX基浇注炸药点火响应规律。结果表明,在持续稳定的加热条件下,浇注PBX炸药匀速升温,RDX先于LLM-105分解放热导致炸药发生毫秒级点火响应;在浇注PBX炸药模型中增加LLM-105含量后,点火源数量减少至10个,点火延滞时间延长至1 926 s;细化后无棱角且粒径小的LLM-105颗粒有利于提高RDX基浇注PBX炸药的热安全性。
Abstract:
To understand the effect of adding LLM-105 on the thermal safety of RDX-based cast explosives, a two-dimensional mesoscopic model of RDX-based cast explosives containing LLM-105 was established according to the different mass fraction and crystal form of LLM-105. Based on the finite element method, the self-exothermic reaction of LLM-105 and RDX was considered, and the ignition behavior under different working conditions at the boundary heating rate of 6 K/min was simulated, the ignition response rule of RDX-based PBX containing LLM-105 was analyzed. The results show that the cast PBX explosives are heated in constant heating rate under the continuous and stable heating conditions, and its exothermic decomposition before LLM-105 makes explosives occur ignition response in the millisecond time; After increasing the content of LLM-105 in cast PBX explosives, the number of ignition sources reduces to 10 and the ignition delay time prolongates to 1926s; After thinning, the LLM-105 particles without edges and with small size can improve the thermal safety of RDX-based PBX explosives.

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相似文献/References:

[1]李玉斌,黄 辉,李金山,等.一种含LLM-105的HMX基低感高能PBX炸药[J].火炸药学报,2008,31(5):1.
[2]董军,王晶禹,梁磊,等.LLM-105/EPDM造型粉的制备及性能[J].火炸药学报,2009,32(5):14.
[3]郁晓宇,陆明,聂福德.二氨基-3,5-二硝基-1-氧吡嗪合成工艺的改进[J].火炸药学报,2012,35(2):10.
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[4]王友兵,邓明哲,廉鹏,等.耐热炸药LLM-105的合成及量子化学研究[J].火炸药学报,2013,36(1):38.
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[5]张超,杨立波,袁志锋,等.含LLM-105无烟CMDB推进剂的燃烧性能[J].火炸药学报,2014,37(5):77.
 ZHANG Chao,YANG Li-bo,YUAN Zhi-feng,et al.Combustion Performances of Smokeless Composite Modified Double-base(CMDB) Propellants Containing 2,6-Diamino-3,5-dinitro pyrazine-1-oxide(LLM-105)[J].,2014,37(2):77.
[6]曾诚成,巩飞艳,刘世俊.Al@GAP复合粒子对LLM-105热分解性能的影响[J].火炸药学报,2017,40(4):27.[doi:10.14077/j.issn.1007-7812.2017.04.005]
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备注/Memo

备注/Memo:
收稿日期:2017-07-24;改回日期:2017-11-02。
基金项目:中北大学地下目标毁伤技术国防重点学科实验室开放研究基金资助项目(No:DXMBJJ2017-08)
作者简介:沈瑞强(1993-),男,硕士研究生,从事炸药装药安全性技术研究。E-mail:15388516429@163.com
更新日期/Last Update: 1900-01-01