猛炸药RHT-901和钝感炸药IHE-2的爆轰波直角绕射

 采用高速转镜分幅相机和电探针技术研究了猛炸药RHT-901和钝感炸药IHE-2的爆轰波直角绕射图像和不同位置上的爆轰波传播时间。从研究得出，两种炸药都在拐角顶点附近绕射，爆轰波传播时间增长，爆速变小。但是两种炸药绕射爆轰波的状态不一样，钝感炸药IHE-2中爆轰波绕过直角时，在拐角顶点附近约10 mm范围内炸药未完全反应，猛炸药RHT-901中爆轰波绕过直角时未出现类似现象。两者相比，钝感炸药中绕射爆轰波速度变化大，波阵面曲率半径小，而猛炸药的绕射爆轰波速度变化小，波阵面曲率半径大。这说明炸药的爆轰波绕射与炸药的冲击感度、反应区宽度有关。

THE RECTANGULAR DIFFRACTION OF DETONATION WAVE IN THE HIGH EXPLOSIVE RHT 901 AND THE INSENSITIVE HIGH EXPLOSIVE IHE 2

The patterns of rectangular diffraction of detonation in the high explosive RHT 901 and the insensitive high explosive IHE 2 have bean measured with the rotating mirror framing camera and the coaxial ionization probes techniques.Results show that (1) the reaction is incomplete near the convex angle in IHE 2;(2) the radius of the curvature of the diffractive detonation wave front in RHT 901 is larger than that in IHE 2 and (3) the diffraction of the detonation has relation with the width of reaction zone and the sensitivity of the explosive.