Textbook in PDF format Underwater Structures provides the necessary background theory of shell structures for the geometries encountered in submarine pressure hulls and deep-diving submersibles. Both analysis and design issues are considered, using analytical as well as numerical approaches. Classical thin-walled structures theory is implemented, and both elastic stability and collapse are considered for all types of structural geometries presented. These include ring-stiffened cylindrical shells, spheres, hemi-spherical shells, truncated cones, and torispherical end closures. This book also discusses structural design issues, including the selection of materials and the use of design codes. This book is suitable for university students at both the undergraduate and postgraduate level, and it also serves as a refer-ence text for academic teachers, engineering professionals, and researchers. Key Features:• Covers various types of submarines, both naval and civilian, and deep-diving submersibles.• Presents the latest in submersible structural design and includes both classical structures theory and finite element procedures.• Includes coverage of corrosion and fatigue in submarine structures