摘要
文章分析了含有装药缺陷的侵爆战斗部在侵彻过程中装药安定性的问题,建立了含缺陷的装药、弹体和靶板模型,利用ANSYS/LS-DYNA模拟了在侵彻靶板时缺陷在冲击载荷作用下的塑性变形情况,计算了炸药的塑性应变能和热分解作用下装药的局部温升情况,从温度角度对含缺陷战斗部的装药安定性进行了分析,通过模拟不同攻角下弹体的穿甲过程,得出了攻角越大对于含缺陷的战斗部装药的安定性影响就越大的结论,证明了含缺陷装药的装药塑性应变能积累对于装药安定性的影响比较小。
To study the influencing of the charge safety which had munitions flaw armor-piercing process during the armorpiercing process in this paper, the annular shaped about warhead which had munitions flaw and the target was created. The process of penetrating with the flaw closing was simulated by using ANSYS/LS-DYNA software,and the PBX's thermal decomposition was bdiscribed using arrhenius equation. And the temperature variation in some area about the above process was calculated, some conclusions about the charge safety based on the above data were got. Finally, some conclusions that the bigger the angle of attack of the warhead, the influencing of the stability of the charge would bigger during the armor-piercing process which had different angle of attack were summered. It was proved that the plastic strain energy of munitions flaw had a less influence for the charge safety.
引文
[1]尹建平,王志军.弹药学[M].2版.北京:北京理工大学出版社,2012:2-4.YIN JIANPING,WANG ZHIJUN.Ammunition[M].2nd ed.Beijing:Beijing Institute of Technology Press,2012:2-4.(in Chinese)
[2]尹俊婷,罗颖格,陈智群,等.一种弹药PBX装药的贮存老化机理及安全性[J].含能材料,2015,2(11):1051-1054.YIN JUNTING,LUO YINGGE,CHEN ZHIQUN,et al.Storage aging mechanism and safety of certain ammunition PBX charge[J].Chinese Journal of Energetic Materials,2015,23(11):1051-1054.(in Chinese)
[3]刘群,陈朗,伍俊英,等.PBX炸药细观结构冲击点火的二维数值模拟[J].火炸药学报,2011,34(6):10-16.LIU QUN,CHEN LANG,WU JUNYING,et al.Two-dimensional mesoscale simulation of shock ignition in PBX explosives[J].Chinese Journal of Explosives&Propellants,2011,34(6):10-16.(in Chinese)
[4]傅华,李克武,李涛,等.非均质结构PBX炸药的动态压缩过程模拟[J].爆炸与冲击,2016,36(1):17-33.FU HUA,LI KEWU,LI TAO,et al.Simulation of dynamic compression of plastic-bonded explosives considering heterogeneous structure[J].Explosion and Shock Waves,2016,36(1):17-33.(in Chinese)
[5]王洪波,王旗华,卢永刚,等.PBX炸药细观孔洞缺陷对其冲击点火特性的影响[J].火炸药学报,2015,38(5):31-36.WANG HONGBO,WANG QIHUA,LU YONGGANG,et al.Effect of meso-defect holes on the shock-to-ignition characteristics of PBX explosives[J].Chinese Journal of Explosives&Propellants,2015,38(5):31-36.(in Chinese)
[6]焦志刚,郭秋萍,刘宗超.半穿甲弹侵彻过程中装药安定性数值模拟[J].弹箭与制导学报,2012,32(2):92-94.JIAO ZHIGANG,GUO QIUPING,LIU ZONGCHAO.Numerical analysis of semi-armor-piercing bullet charge safety during penetration[J].Journal of Projectiles,Rockets,Missiles and Guidance,2012,32(2):92-94.(in Chinese)
[7]李媛媛,王晓峰,高立龙,等.炸药装药侵彻靶板过程的点火机制分析[J].四川兵工学报,2013(12):24-26.LI YUANYUAN,WANG XIAOFENG,GAO LILONG,et al.Initiation mechanism of explosive charge during target penetration[J].Journal of Sichuan Ordnance,2013(12):24-26.(in Chinese)
[8]王伟力,黄雪峰,杨雨潼.半穿甲战斗部侵彻过程中装药安定性研究[J].海军航空工程学院学报,2010,25(1):79-82.WANG WEILI,HUANG XUEFENG,YANG YUTONG.Research on the grain safety during the penetration process of semi-armor-piercing warhead[J].Journal of Naval Aeronautical and Astronautical University,2010,25(1):79-82.(in Chinese)
[9]覃金贵.PBX炸药非冲击点火机制试验和数值模拟研究[D].长沙:国防科学技术大学,2014.QIN JINGUI.Experimental investigation and numerical modeling of non-shock ignition mechanism in PBX explosives[D].Changsha:National University of Defense Technology,2014.(in Chinese)
[10]陈丁丁,卢芳云,林玉亮,等.某含铝PBX压缩性能的应变率与温度效应[J].高压物理学报,2013,27(3):361-366.CHEN DINGDING,LU FANGYUN,LIN YULIANG,et al.Effects of strain rate and temperature on compressive properties of an aluminized PBX[J].Chinese Journal of High Pressure Physics,2013,27(3):361-366.(in Chinese)
[11]孙宝平,段卓平,马兆芳,等.侵彻过程中装药摩擦点火数值模拟[J].北京理工大学学报,2012,32(8):771-775.SUN BAOPING,DUAN ZHUOPING,MA ZHAOFANG,et al.Numerical simulation on frictional ignition of charge during projectile penetration[J].Transactions of Beijing Institute of Technology,2012,32(8):771-775.(in Chinese)
