Figure 7.

The variation of various parameters of the projectile versus time. (a) Relationship between deceleration and time. With the increase of penetration time, the deceleration decreases gradually. (b) Relationship between depth of penetration and time. With the increase of penetration time, the depth of penetration increases gradually. (c) Relationship between residual mass and time. With the increase of penetration time, the residual mass of projectiles decrease gradually and finally remains constant at the final stage.