The Research of Influence Factors and Law of Trajectory Deflection in the Process of Penetration into Concrete Targets

In order to study the trajectory deflection law of rigid projectiles obliquely penetrating into concrete targets,the semi-empirical formulas method was used to determine target resistance function and the target resistance function was loaded onto a projectile surface as a boundary condition by ABAQUS. Therefore,the trajectories of the mass center of the projectiles were calculated. The following conclusions were got through the analysis: the greater the oblique angle is the more obvious influence of oblique angle on penetration depth and direction change is; the influence of trajectory deflection shows the tendency of decrease with the increase of impact velocity; trajectory deflection is larger as mass center position is nearer to the projectile tail.