刚性弹体侵彻/贯穿有限厚钢筋混凝土靶的弹道预测

The steel reinforcement has a significant effect on the trajectory of projectile when the projectile penetrates/perforates a reinforced concrete target. The free surface effect of plain concrete is improved and optimized considering the influence of the steel reinforcement. The impact of steel reinforcement on the ballistic plane and the two sides of the ballistic plane on the projectile was analyzed, and the resistance model of steel reinforcement to the projectile was obtained. Based on the differential area force law, a trajectory calculation model of rigid projectile penetrating/perforating a finite-thick reinforced concrete target is established. Combined with the experimental results, the accuracy of the proposed model is verified, and the influence of steel reinforcement on the trajectory is analyzed. The results show that the steel reinforcement weakens the free surface effect of target. The shallower the depth of the first layer of steel reinforcement is, the smaller the ballistic deflection is. The deflection of projectile is aggravated or inhibited due to the difference in the position of the projectile impacting the steel reinforcement, and the steel reinforcement in the ballistic plane has a major effect on the trajectory.