爆炸复合中起爆区不定常段的确定

对2岩石炸药的定常爆轰形成过程进行了实验研究;对起爆端稀疏波效应进行了计算。实验结果表明,距起爆端约10倍装药厚度以内为不定常爆轰区。距离起爆端小于5倍装药厚度时,飞板速度及碰撞角增幅较大,5～10倍装药厚度,两者增幅趋缓,10倍装药厚度以后,爆速、飞板速度及碰撞角逐步进入定常状态。飞板碰撞角的工程计算与实验结果的一致性较好。

The determination of unsteady detonation area in explosive cladding

The motivation of the present paper is to examine the effects of unsteady detonation after its initiation on the explosive cladding. The detonation experiment using (~#2) trimonite dynamite explosive indicated that the size of unsteady detonation area centre around the initiation point is about 10 times of explosive charge thickness. The severely affected area size of unsteady detonation centre around the initiation point on explosive welding parameters is within 5 times of explosive thickness, the effect weakened between the distance of 5 and 10 times of explosive thickness, and disappeared gradually still further. By means of the collapse angle calculation of flyer plates, the affected area in explosion cladding by unsteady detonation has been evaluated, and shows consistent with the experimental data.