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本文描述了聚能金属射流侵彻起爆炸药的试验装置和方法。聚能金属射流是用标准空心装药产生的,空心装药的尺寸为直径40mm,高度66mm,药型罩为紫铜,顶角60°,底直径36mm,壁厚0.75mm,炸药为钝化黑索今,密度1.680±0.005Mg/m~3。炸高为72mm时的最大穿深为150±6mm45~＃钢靶柱。用2MV脉冲闪光X射线摄影仪测量了金属射流穿透不同厚度的钢靶板后的头部运动速度及直径,作出了射流头部速度对钢靶板厚度的标定曲线及拟合曲线公式。炸药对射流侵彻起爆的感度,采用使炸药产生50％概率爆轰的钢靶板厚度(即临界厚度)表示,相对应的临界的流速度可用标定曲线或拟合公式求得。文中给出了TNT.Comp.B及TATB炸药的射流侵彻起爆感度.最后对结果进行了讨论。
This article describes a test apparatus and method for penetration of a can-fired metal jet into an explosive. The converging metal jet is produced with a standard hollow charge of 40 mm in diameter and 66 mm in height. The drug-type cover is copper, the apex angle is 60 °, the bottom diameter is 36 mm and the wall thickness is 0.75 mm. The explosives are passivated black Cable today, the density of 1.680 ± 0.005Mg / m ~ 3. The maximum penetration depth of 72mm when the bomb is 150 ± 6mm45 ~ # steel target column. The velocity and diameter of the head after the metal jet penetrated through the steel target with different thickness were measured by 2MV pulse flash X-ray radiography. The calibrated curve and fitting curve formula of jet head velocity on the thickness of the steel target were obtained. Explosive explosive penetration of explosives sensitivity, the use of explosives produced 50% probability of detonation of the steel target plate thickness (ie, the critical thickness) that the corresponding critical flow velocity calibration curve can be obtained using the calibration curve or formula. The jet penetration detonation sensitivities of TNT.Comp.B and TATB explosives are given in the paper.At last, the results are discussed.