The transient response of submerged orthotropic cylindrical shells exposedto underwater shock

This paper presents an analysis of submerged orthotropic cylindrical shells subjected to underwater shock wave. The equations of motion of orthotropic circular cylindrical shells are used in conjunction wtih the Reflected-Aft erflow-Virtual-Source (RAVS) model to model the fluid-structure interaction . The finite difference method is then employed to solve the governing equa tion for the problem of the infinitive length orthotropic cylindrical shell subjected to planar shock waves. A comparison of the results respectively obtained by present analysis and USA/LSDYNA3D code is made to verify the pr esent solution. By using the present approach, the effects of orientation a lpha, thickness-radius ratio h/R and curvature I/R on the transient respons es of the shell are examined. (C) 1998 Published by Elsevier Science Ltd. A ll rights reserved.