PERFORATION OF PLASTIC SPHERICAL SHELLS UNDER IMPACT BY CYLINDRICAL PROJECTILES  

作　　者：宁建国 宋卫东 

机构地区：[1]State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology,Beijing 100081, P. R. China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2006年第2期235-240,共6页应用数学和力学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(No.90305018)

摘　　要：The objective is to study the perforation of a plastic spherical shell impacted by a cylindrical projectile. First, the deformation modes of the shell were given by introducing an isometric transformation. Then, the perforation mechanism of the shell was analyzed and an analytical model was advanced. Based on Hamilton principle, the governing equation was obtained and solved using Runge-Kuta method. Finally, some important theoretical predictions were given to describe the perforation mechanism of the shell. The results will play an important role in understanding the perforation mechanism of spherical shells impacted by a projectile.The objective is to study the perforation of a plastic spherical shell impacted by a cylindrical projectile. First, the deformation modes of the shell were given by introducing an isometric transformation. Then, the perforation mechanism of the shell was analyzed and an analytical model was advanced. Based on Hamilton principle, the governing equation was obtained and solved using Runge-Kuta method. Finally, some important theoretical predictions were given to describe the perforation mechanism of the shell. The results will play an important role in understanding the perforation mechanism of spherical shells impacted by a projectile.

关 键 词：thin shell IMPACT PERFORATION 

分 类 号：O347[理学—固体力学]