高-低爆速圆板炸药串联爆轰引起平面爆轰波的变凸现象  

Analysis on a plane detonation wave changed into a convex wave induced by series-detonation of cylindrical explosives with low and high detonation velocities

作　　者：张万甲[1] 吴强[1] 刘光祚[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《爆炸与冲击》2007年第3期259-265,共7页Explosion and Shock Waves

摘　　要：为分析高-低爆速圆板炸药于空中串联爆轰时平面爆轰波在传播过程中演变成凸面波的现象,分别对平面爆轰波阵面后爆轰产物状态参数的分布、有效药量与柱面装药几何尺寸的关系、爆轰产物的状态方程及强爆轰关系式进行了讨论。并以100mm×50mm的TNT与RC炸药串联爆轰为例,描述了平面爆轰波演变为凸面爆轰波的过程,预估了爆轰波的平面范围和波形差。预估结果与实验结果基本符合。The distribution of state parameters for detonation products behind the wave front, the relationship between the effective explosive volume and cylindrical charge geometry, the state equation of detonation products and the expressions of strong detonation were respectively discussed to analyse the phenomenon on a plane detonation wave changed into a convex wave induced by series-detonation of cylindrical explosives with low and high detonation velocities. The evolved process of a plane detonation wave changed into a convex wave was described by taking series-detonation of Ф100 mm ×50 mm TNT andФ100 minХ50 mm RC cylindrical explosives for example, and the plane area and the lagging time from the center section to the edge of the waveform were predicted. The predicted results is consistent with the measurements.

关 键 词：爆炸力学 强爆轰 有效药量 串联爆轰 

分 类 号：O381[理学—流体力学]