动能侵彻子弹对混凝土厚靶贯穿深度预估研究

Research on Penetration Depth of Projectile into Thick Concrete Targets

用柱形腔膨胀理论和对混凝土厚靶撞击侵彻试验结果来确定混凝土材料的特性参数Psd，并以由此确定的Psd值和柱形腔膨胀理论公式预估动能侵彻子弹对混凝土厚靶的贯穿深度。7次不同撞击速度试验结果的统计表明：Psd值的变化不大，它是表征混凝土材料对子弹贯穿抗力大小的特性参数。

Firstly the property parameter psd of concret materials is introduced and the psd value is determined by the cylindrical cavity expansion theory and test results of penetration into thick concrete targets, then the penetration depths into thick concrete targete targets, then the penetration depths into thick concrete targets are predicted by this psd value determined in this paper and using the cylindricalfcavity expansion approximation.Seven of penetration test results with different impact velocities are presented. From these test results, it is shown that the variation of psd values with the impact velocities is small, psd is the property parameter to characterize the resistance of concrete materials on projectile.