Experimental Study of Plain and Reinforced Concrete Targets Subjected to Impact Loading

In order to study the influence of the plain concrete and reinforced concrete on ballistic performances. Penetration tests were conducted on different thicknesses of plain concrete and reinforced concrete plates having 40 Mpa unconfined compressive strength and reinforcement of 8 mm diameter steel mesh in reinforced concrete plates is incorporated. The plates were 450 mm of diameter and 60 mm, 80 mm, 100 mm thicknesses are studied. The plates were subjected to an impact of hard steel projectile with ogive nose weighing 1 kg with diameter 19 mm and length of 450 mm. The projectiles were accelerated by the laboratory pneumatic gun to velocities range between 28m/s to 102m/s. impact and residual velocities were measured by the high speed digital camera system. Ballistic resistance of plain concrete and reinforced concrete at different thicknesses had been find out in the experiments and compared with already proposed analytical formula. The results thus obtained are presented and influences there on due to the variation in the concrete plate thicknesses to the projectile impact are discussed. The ballistic limit was found to increase with an increase of target thickness.