带壳炸药在高速运动炸药作用下殉爆效应研究

为研究带壳炸药在高速运动炸药作用下的殉爆效应,应用Lee-Tarver点火增长模型对三种不同运动速度的两种主发炸药作用下带壳炸药的临界殉爆距离进行数值模拟研究,获得了主发炸药运动速度对带壳炸药殉爆距离的影响规律。结果表明:主发炸药运动速度越快,动爆毁伤效能越强,被发带壳炸药临界殉爆距离越大;主发炸药运动速度越快,不同运动速度下被发带壳炸药临界殉爆距离差距越大;质量和运动速度均相同的TNT和PBX9404主发炸药,PBX9404炸药作用下被发带壳炸药临界殉爆距离较大,且两种主发炸药运动速度越快,这一差距越明显。

RESEARCH ON THE SYMPATHETIC DETONATION EFFECT OF SHELLED EXPLOSIVE BY HIGH-SPEED MOVEMENT EXPLOSIVE

Aiming at studying the sympathetic detonation of shelled explosive by high-speed movement explosive,Lee-Tarver ignition and growth model was used to simulate the sympathetic detonation distance of shelled explosive under the effect of two kinds of donor explosives with three different velocities.It obtained the influence rules of the velocities of donor explosives to the sympathetic detonation distance of shelled explosive.Results indicated that the faster movement speed of the donor explosive was,the stronger of the dynamic blasting damage effect was,and the greater of the critical sympathetic detonation distance of the acceptor shelled explosive was.When donor explosives were under different velocities,the resuits showed that the faster movement speed of the donor explosive was,the greater of the critical sympathetic detonation distance gap of the acceptor shelled explosive was.When the TNT and PBX9404 donor explosives were at the same mass and velocity,the critical sympathetic detonation distance of the acceptor shelled explosive under the effect of PBX9404 explosive was greater.Besides,the difference grew obviously along with faster movement speed of above two donor explosives.