RDX基含铝炸药和TNT浅层土壤中爆炸开坑的数值模拟与试验  

Numerical Simulation and Experiment of Craters Formed by RDX-based Aluminized Explosive and TNT in Shallow Soil

作　　者：杨亚东[1] 李向东[1] 王辉 尹龙 马跃鹏 

机构地区：[1]南京理工大学智能弹药技术国防重点学科实验室,江苏南京210094 [2]北方华安工业集团有限公司,黑龙江齐齐哈尔161046

出　　处：《火炸药学报》2013年第2期24-29,共6页Chinese Journal of Explosives & Propellants

摘　　要：为了比较装填TNT和RDX基含铝炸药RL-F的杀爆弹在浅层土壤中的爆炸威力,利用LS-DYNA软件对两种装药弹体在土壤中的爆炸开坑过程进行了数值模拟,分析了两种装药弹体的地面鼓包运动和抛掷开坑的最终形态。结果表明,与TNT装药相比,在鼓包运动阶段,RL-F装药弹体的鼓包横向尺寸、鼓包高度和最大鼓包速度分别提高13.1%、23.8%和16%,爆坑直径、深度和体积分别提高11.5%、34.3%和54.5%。大口径杀爆弹上装填RDX基含铝炸药RL-F,可以较明显地提高弹药的爆破威力。To compare the blast power of a frag-demolition shell charged with TNT and RDX-based aluminized ex- plosive RL-F detonated in the shallow soil, the processes of crater formed by the two kinds of charge explosives were numerically simulated by LS-DYNA code, and the bulging process of soil surface and final shape of crater were discussed. The results show that compared with the TNT, the bulging transverse size, bulging height and maximum bulging velocity of RL-F charges increase by 13. 1%, 23. 8% and 16% during the phases of bulging movement, respectively, and the final shape of crater shows that the crater diameter, depth and volume of RL-F charges increase by 11. 5% , 34.3% and 54. 5%, respectively. The blast power of the large calibre frag-demolition shell which charged with aluminized explosive RL-F can be improved greatly.

关 键 词：爆炸力学 含铝炸药 TNT 杀爆弹 浅层土壤 数值模拟 爆炸开坑 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O383.2[理学—流体力学]