长杆弹低速撞击刚性靶板过程中的过载特性研究

Overload Characteristics of Long Rod Impacting Rigid Plate at Low Speed

利用ABAQUS商业有限元软件,研究了平头长杆弹低速撞击刚性靶板时的过载特性,针对几种不同的弹体初速度进行了模拟计算,得到了各个条件下弹体的过载曲线。分析模拟结果表明:在弹性极限范围内,加速度随着速度增大而增大,加速度增长率随着速度增大而减小;加速度积分后得到的速度和位移曲线能很好地与侵彻速度和靶板形变吻合。

The ABAQUS commercial finite element soflware was used to study the overload characteristics of the flat-end long rod impacting rigid plate at low speed. Several different initial velocities are employed for the long rod. The simulation results show that the acceleration increases with the increase of initial velocity within the elastic limit of long rod. The acceleration growth rate decreases with the increase of initial velocity. The velocity and displacement curves integrated by the acceleration data are well consistent with the penetration velocity and target deformation results.