刚性弹体斜侵彻贯穿混凝土靶的姿态偏转理论模型

In the present study we developed an analytical model to describe the attitude deflection of the rigid projectile obliquely penetrating into concrete targets. To improve on the previous models, we took the effect of the inertia moment of the projectile into account and assumed anew the shape of the plug formed on the rear surface of the concrete target with regard to the experimental perforation characteristics, and introduced a second attitude deflection mechanism into the shear plugging stage. Moreover, we proposed to classify concrete targets into three types, i.e. thin, medium and thick. The calculated results under different perforation situations accorded well with the experimental data, indicating the validity of our analytical model in predicting the projectile attitude during the oblique perforation of concrete targets.