Dynamic Response of a Ring-stiffened Cylindrical Shell Subjected to Underwater Explosive Loading
Choosing scaled stiffened cylindrical shell model as simulation object, the simulation model of stiffened cylindrical shell subjected to underwater explosion load is built by using MSC-DYTRAN finite element analysis software, the typical test conditions which shock factor is 1.1 is simulated, the damage properties of stiffened cylindrical Shell is analyzed, numerical results are compared with experimental data, it is proved that the simulation method is effective and feasible. By performing a series of numerical experiments, the influence of attack angle of explosive and submergence depth of model on the elastic-plastic dynamic response were investigated. It is shown that angle of 90 degrees is the most serious attack angle, angle of 0 degrees is less serious than other angle, the submergence depth of stiffened cylindrical shell has obvious influence on dynamic response, the more deep cylindrical shell is, the more serious cylindrical shell is damaged.
Underwater explosion Cylindrical shell Dynamic response Numerical simulation
Jianhong Yuan Xi Zhu
Department of Naval Architecture and Ocean Engineering, Naval University of Engineering Wuhan, 430033, China
国际会议
上海
英文
931-936
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）