LIST OF FIGURES 



Page 



Figure 1 -- Outboard Profiles of Various Submarine Hulls 5 



Figure 2 -- Post-World War II SS563 -- Class Submarine 6 



Figure 3 -- First Nuclear-Powered Submarine NAUTILUS 6 



Figure 4 -- First Ideal-Shape Submarine ALBACORE 7 



Figure 5 -- Nuclear-Powered, Ideal-Shape Submarine SKIPJACK . . 7 

 Figure 6 -- First Polaris-Firing Submarine GEORGE 



WASHINGTON 9 



Figure 7 -- Possible Modes of Pressure Hull Failure 9 



Figure 8 -- Typical Axisymmetric Collapse Mode 11 



Figure 9 -- Typical Asymmetric Collapse Mode 13 



Figure 10 - Typical General-Instability Collapse Mode 15 



Figure 11 - Symmetrically Loaded Cylindrical Shell with Equally 



Spaced Reinforcing Ring Frames 29 



Figure 12 - Curves for Computing Plastic-Hinge Collapse 



Pressure P^ □ 37 



C o 



Figure 13- Typical Stress-Strain Diagram Showing the Various 



Modulii of Interest 69 



Figure 14- Graphical Determination of Inelastic Buckling Pressure 



for Two General Classes of Material 72 



Figure 15 - Longitudinal Configuration of Radial Buckling 



Displacement 89 



iv 



