ABSTRACT
This chapter presents a simplified method for assessing the damage of an immersed cylinder subjected to the primary shock wave produced by an underwater explosion. The method is based on a simplified mechanism of shell deformation, the so-called plastic string-on-foundation mechanism, together with an approximation of the primary shock wave loading from the underwater explosion. The chapter discusses a simplified method for assessing the damage of an immersed cylinder subjected to underwater shock wave is described for application to pre-design analysis. In the design process of submarines, numerous calculations must be performed to minimize the amount of damage produced by underwater explosions, with various characteristics of shell, material and scenarios of explosion. Numerical methods have been developed for simulating the dynamic response of submerged structures to an underwater explosion, and have been applied to cylindrical shell and ring-stiffened cylinder by C. F. Hung and Li.
