hollow rod
4.By the use of the JH-2 constitute model to the concrete targets, the Johnson-Cook strength model along with the EOS of the Mie-Gruneisen, we modeled the long rod projectile with hollow penetration into the semi-infinite concrete targets, a experiment which had been carried out by LIU Cangli et al. The computated time history curves of the depth of penetration (DOP), the penetration velocity, the penetration duration and the final penetration depths all fit well with the document.
