拐角角度对爆轰波拐角效应的影响

THE INFLUENCE OF THE ANGLE OF CONVEX CORNER ON THE EFFECT OF DETONATION WAVES

利用高速摄影技术研究了拐角角度分别为６０‘、９０‘、１２０‘情况下注装ＴＮＴ中爆轰波的拐角绕射现象。结果表明，拐角距离和死区面积随拐角角度的变化而变化。拐角为６０‘时没有明显的爆轰波滞后现象；随着拐角角度的增大，拐角距离减小；拐角为１２０‘时，有死区（ 未爆区） 存在。

In this paper,the diffraction of detonation wave passing around 60 ,90  and 120  convex corners in cast TNT was studied by means of the high speed photographic techniques.The result indicates that the corner turning distance and the volume of the dead region change with the angle of the convex corner.The corner turning distance decreases with the increase of the angle of the convex corner.The delay of the detonation wave is small for the case of 60  convex corner,but the dead (undetonated) region appears for the case of 120  convex corner.