由于动能弹侵彻装甲时瞬间所产生的压力和温度的变化难于测定,对侵彻现象不够理解,澳大利亚材料研究所(MRL)用高速X射线摄影技术研究了高速侵彻的机理。 弹头击中半无限厚度目标时,其尖端在高冲击压力下变平,而且侵彻的孔径大于弹径。这种现象可用弹头和靶材的相对流动应力来解释,而流动应力则用射击速度的函数 Due to the unpredictable changes in pressure and temperature caused by the penetration of kinetic energy projectiles into the armor and the lack of understanding of the phenomenon of penetration, the Australian Materials Institute (MRL) studied the mechanism of high-speed penetration using high-speed X-ray photography. When the projectile hits the semi-infinite thickness target, its tip flattens out under high impact pressure and its penetration diameter is larger than its diameter. This phenomenon can be explained by the relative flow stress of the warhead and the target, whereas the flow stress is a function of the firing rate