Comparative Research on Depth Empirical Formula of Projectile with Attack Angle Oblique Penetration into Concrete

In order to analyze the applicability of the classic penetration depth empirical formula about the projectile with attack angle oblique penetration into concrete,we described the empirical formula of the projectile penetration into concrete that high accuracy and wider application,and used a loading and testing system to experiment research for projectile attack angle and oblique angle joint penetration into C30 concrete by 152 mm light-gas gun. We obtained the projectile velocity,open pit size and penetration depth. The empirical formula of the projectile with attack angle oblique penetration into concrete targets depth was calculated and compared,and the differences of the empirical formula's calculated values and measured values were analyzed. It reaches the conclusion that ACE formula and Forrestal formula's calculated depths close the measured values under the projectile with attack angle oblique penetration into concrete,and relative error don't exceed 10%,which meet the demand of the engineering calculations.