谢全民,曹宏安,谢俊磊,马海洋,石敬涛
XIE Quan-min,CAO Hong-an,XIE Jun-lei,MA Hai-yang,SHI Jing-tao

• 1:武汉军械士官学校
• 2:73883部队
• 3:解放军3606工厂

摘要(Abstract)：

为了研究PBX炸药的摩擦感度及其在摩擦作用下的点火机理,对PBX炸药进行了摩擦感度试验,并从细观结构的角度对炸药在摩擦作用下的响应过程进行了数值模拟,分析了细观结构对炸药温度场的影响,以及压力、初速度等条件对炸药摩擦点火的影响。结果表明:摩擦作用下PBX炸药的点火点位于HMX颗粒与黏结剂交界处,点火的临界温度为1 100K;向炸药施加的压力越大,其发火可靠性越高,点火时间越早;钢柱摩擦炸药的初速度增大,能够提高其发火可靠性以及点火时间。
In order to study friction sensitivity of PBX explosives and its ignition mechanism under friction,a test on friction sensitivity of PBX explosives was made.The numerical simulation was conducted from the point of view of the microscopic structure of the explosive response process under friction.The influence of microstructure on temperature field of explosives,the effects of friction ignition of explosives by pressure,initial velocity and other factors were analyzed.The results showed that ignition point of PBX located at the junction of HMX particles and the binder under friction.The critical temperature of ignition was 1 100 K.The greater pressure applied to explosives,the higher reliability of its ignition was,and ignition was sooner.If the initial velocity of steel columns to explosives increased,the reliability of ignition and the ignition timing would be improved.

关键词(KeyWords)： PBX炸药;摩擦;点火;试验;数值模拟
PBX explosives;Friction;Ignition;Test;Numerical simulation

Abstract:

Keywords:

基金项目(Foundation): 武汉军械士官学校青年基金(新型弹药公路运输时的减振方法研究)

作者(Author): 谢全民,曹宏安,谢俊磊,马海洋,石敬涛
XIE Quan-min,CAO Hong-an,XIE Jun-lei,MA Hai-yang,SHI Jing-tao

参考文献(References)：

• [1]GLENN J G,FOSTER J C,GUNGER M,et al.A test method and to determine the thermal initiation properties of an energetic material in a low pressure long duration event[C]/12th International Symposium on Detonation.California:American Physical Society,2002:175-187.
• [2]BIRK A,BAKER P,KOOKER D E,et al.Non-detonative explosions and burning of composition-B explosive[C]/12th International Symposium on Detonation.California:American Physical Society,2002:389-398.
• [3]林文洲.高能炸药摩擦感度的理论研究[D].北京:中国工程物理研究生部,2006.LIN Wen-zhou.Theoretical study on friction sensitivity of high energy explosive[D].Beijing:China Engineering Physics Department,2006.
• [4]林文洲,洪涛.高能炸药摩擦感度理论初步研究[J].含能材料,2007,2(1):12-15.LIN Wen-zhou,HONG Tao.Theoretical analysis on friction sensitivity of high explosive[J].Chinese Joural of Energetic Materials,2007,2(1):12-15.
• [5]董海山,周芬芬.高能炸药及相关物性能[M].北京:科学出版社,1989.DONG Hai-shan,ZHOU Fen-fen.High explosives and related property[M].Beijing:Science Press,1989.
• [6]刘群,陈朗,伍俊英.PBX炸药细观结构冲击点火的二维数值模拟[J].火炸药学报,2011,12(6):10-16.LIU Qun,CHEN Lang,WU Jun-ying.Two-dimensional numerical simulation of shock ignition in PBX explosives[J].Chinese Journal of Explosives and Propellants,2011,12(6):10-16.
• [7]高立龙,牛余雷,王浩.典型炸药柱的400kg落锤撞击感度特性分析[J].含能材料,2011,11(4):428-431.GAO Li-long,NIU Yu-lei,WANG Hao.Analysis of impact sensitivity characteristics for typical explosive cylinder[J].Chinese Joural of Energetic Materials,2011,11(4):428-431.
• [8]王沛.高能炸药烤燃实验和数值模拟计算[D].北京:北京理工大学,2009.WANG Pei.Experimental and numerical simulation of high energy explosive ignition[D].Beijing:Beijing Institute of Technology,2009.
• [9]刘群,陈朗,鲁建英.炸药颗粒压制成型数值模拟[J].高压物理学报,2009,23(6):421-426.LIU Qun,CHEN Lang,LU Jian-ying.Numerical simulation of explosive particles compaction[J].Chinese Journal of High Pressure Physics,2009,23(6):421-426.
• [10]于继东,王文强,刘仓理.炸药冲击响应的二维细观离散元模拟[J].爆炸与冲击,2008,28(6):488-493.YU Ji-dong,WANG Wen-qiang,LIU Cang-li.Twodimensional mesoscopic discrete element simulation of shock response of explosives[J].Explosion and Shock Waves,2008,28(6):488-493.
• [11]沈兆武,马宏昊,李雪交,等.炸药能量的和平利用?[J].工程爆破,2016,22(1):30-37.SHEN Zhao-wu,MA Hong-hao,LI Xue-jiao,et al.The peaceful use of explosive energy?[J].Engineering Blasting,2016,22(1):30-37.