J. Phys. IV France
Volume 134, August 2006EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Page(s)||403 - 408|
|Publié en ligne||26 juillet 2006|
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 403-408
A semi-empirical equation of penetration depth on concrete target impacted by ogive-nose projectilesSiying Chen1 and Chenguang Huang2
1 Department of Optoelectronic Engineering, Beijing Institute of Technology, Beijing 100081, China
2 Department of Engineering Sciences, Institute of Mechanics, Chinese Academy of Sciences 100080, China
Published online: 26 July 2006
In this paper, the penetration process of ogive-nose projectiles into the semi-infinite concrete target is investigated by the dimensional analysis method and FEM simulation. With the dimensional analysis, main non-dimensional parameters which control the penetration depth are obtained with some reasonable hypothesis. Then, a new semi-empirical equation is present based on the original work of Forrestal et al., has only two non-dimensional combined variables with definite physical meanings. To verify this equation, prediction results are compared with experiments in a wide variation region of velocity. Then, a commercial FEM code, LS-DYNA, is used to simulate the complex penetration process, that also show the novel semi-empirical equation is reasonable for determining the penetration depth in a concrete target.
© EDP Sciences 2006