摘要
利用大型动力有限元分析软件 ,采用 Johnson- Cook动态本构模型 ,对长杆弹侵彻中厚靶问题进行了数值模拟 ,给出了弹体与靶体的破坏变形发展过程及应力波传播过程 ,得到了弹体的受力曲线 。
In this paper, the long rod projectile penetrating into moderately thick targets is simulated by the dynamic finite element analysis software LS-DYNA. The materials are modeled with the Johnson-Cook dynamic constitutive relationship. The process of deformation and the stress propagation in both projectile and target are obtained. In addition, the interface forces acted on the projectile are given. It is demonstrated that the numerical results correspond well to previous experimental observations.
出处
《解放军理工大学学报（自然科学版）》
EI
2001年第4期66-70,共5页
Journal of PLA University of Science and Technology(Natural Science Edition)
