火炸药学报2018，Vol.41Issue(2)：137-142,6.DOI:10.14077/j.issn.1007-7812.2018.02.006
升温加载下含LLM-105的RDX基浇注炸药热点火细观模拟
Microscopic Simulation on Thermal Ignition of RDX-based Cast Explosives Containing LLM-105 under Heat Loading
摘要
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 reac-tion 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 continu-ous 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 ig-nition 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.关键词
LLM-105/浇注炸药/热点火/细观模拟/含能钝感剂Key words
LLM-105/cast explosives/thermal ignition/microscopic simulation/energetic deterrent分类
军事科技引用本文复制引用
沈瑞强,袁俊明,罗凯,刘玉存,张林炎,常双君,王建华..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):137-142,6.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) （No:DXMBJJ2017-08）
