弹体斜侵彻多层混凝土靶的弹道特性研究

为了研究弹体斜侵彻多层混凝土靶板后的弹道特性，利用 ANSYS ／LS-DYNA 有限元软件，对弹体在不同着角和速度的初始条件下斜侵彻三层混凝土靶板的过程进行数值计算。结果表明：小着角对弹道偏转有一定的抑制作用，而大着角恰恰相反；速度较小时，增大初始速度会增大弹体的弹道偏转角；弹体贯穿每层靶板的速度随着初始着角的增大衰减加快，随着初始速度的增大近似为线性关系。

Trajectory Characteristics of Projectile Obliquely Penetrating Multi-Layered Concrete Targets

In order to study the trajectory characteristics of projectile penetrating into multi-layered concrete targets at oblique angle,projectile penetrating progress of three-layered concrete targets was simulated under different initial oblique angles and different initial velocity was numerically simulated by the finite element code ANSYS /LS-DYNA.The results show that the small oblique angle may reduce the deflection of penetration trajectory and the big oblique angle may enlarge its deflection.When the impact velocity is small,the deflection of penetration trajectory increases with the increase of the velocity.It also found that the velocity of the projectile penetrating through each layer of target is accelerated attenuation with the increasing of the oblique angle and it has approximate linear relation with the increasing of the initial velocity.