Studying Effect of Geometrical Parameters on the Buckling of Cylindrical Shells under Hydrostatic Pressure

In this paper, we study the effect of diameter and thickness of a shell as well as the reinforcement rings on buckling of cylindrical shells under external hydrostatic pressure. Bucking equations are based on standard of ABC underwater vessels. Using the relations in different diameters, tolerable buckling load has been obtained with shell, by changing the thickness of shell and distance of reinforcement rings in definite range. Results obtained from buckling pressure in different diameters and for different ratios of D/t and D/L are given and finally a diagram has been presented for designing and determining different parameters of reinforced cylindrical shell after comparing them. Keywords: Buckling, External Hydrostatic Pressure, Reinforcement Ring, Cylindrical Shell.