Effect of the strain rate on the tensile strength of a copper shaped-charge jet

被引：3
|
作者：
Silvestrov, VV
Gorshkov, NN
机构：
[1] Lavrent'ev Inst. of Hydrodynamics, Siberian Division, Russian Academy of Sciences
来源：
COMBUSTION EXPLOSION AND SHOCK WAVES | 1997年 / 33卷 / 01期
关键词：
Apex Angle; Separate Fragment; Shaped Charge; Hemispherical Shell; Spin Velocity;
D O I：
10.1007/BF02671859
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The data on the penetration depth of a rotating shaped-charge jet were used to estimate the strength of the material of a copper jet formed from a ''low'' conical liner with an apex angle of 120 degrees under the action of centrifugal forces. The estimates 0.07-0.15 GPa obtained are close to the static yield point of deformed copper. The jet strength, which is estimated using the length of the fragments formed upon breakup of a rotation-free jet owing to the axial velocity gradient, attains 1-1.5 GPa at a strain rate of similar or equal to 2.10(4) sec(-1).
引用
收藏
页码：93 / 99
页数：7
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