常温下JBO-9021高能钝感炸药直径效应实验  

Diameter effect of JBO-9021 rate sticks at room temperature

作　　者：汪斌[1] 谭多望[1] 赵继波[1] 文尚刚[1] 

机构地区：[1]中国工程物理研究院流体物理研究所冲击波物理与爆轰物理重点实验室,四川绵阳621900

出　　处：《爆炸与冲击》2012年第5期490-494,共5页Explosion and Shock Waves

摘　　要：通过光电联合测试方法,测量了常温下直径为10、15和30mm高能钝感炸药柱JBO-9021炸药的定态爆速和波形,根据拟合的爆轰波阵面形状,分析了波阵面法向速度Dn与当地曲率κ之间的关系。研究结果表明,JBO-9021炸药的定态爆速随药柱直径的增大而增大,JBO-9021(w(HMX)=15%)相对JB-9014炸药(w(TATB)=95%),爆轰波形更平坦,爆轰波非理想传播行为得到一定改进。By using the photoelectric method, the steady-state detonation velocities and the corresponding wave shapes were measured for the JBO-9021 rate sticks with the diameters of 10, 15 and 30 mm, respectively, and in the JBO-9021 rate sticks the mass fractions of TATB, HMX and F2314 were 80%, 15% and 5%, respectively, at room temperature. An analytic expression was fitted to the wave front data. And based on the analytic expression, the relation was obtained between the normal velocity o{ the wave front and its local curvature. The investigated result displays that the steady-state detonation velocity of the JBO-9021 explosive increases with the increase of the diameter of the JBO- 9021 rate stick. The detonation wave of the JBO-9021 explosive is fatter than that of the JB-9014 explosive in which the mass fractions of TATB and F2314 are 95% and 5%, respectively. Consequently, the nonideal spread characteristics of the detonation waves weaken.

关 键 词：爆炸力学 直径效应 高速摄影 钝感炸药 定态爆速 定态波形 

分 类 号：O381[理学—流体力学]