Project Topic Study of Various stiffening methods of a pressure loaded tank structure For my project I will evaluate the varying stiffener designs used in pressurized tanks in submarines. Tank stiffeners can be sized initially by assuming them to be a rectangular fixed/clamped plate and solving the closed formed equations for stress/small deflection, etc. For more accurate results, the designs are then analyzed using FEA. The closed form solutions provide an approximate solution, but the final configuration, size, etc, is based upon stresses shown in the model and fabrication constraints. In some cases the final stiffener equations could be a combination of a fixed/clamped plate. I would like to look further into how these final designs relate to the basic closed form solutions. ill need to use ABAQUS, which i will need to learn. i will need to do much research on tank designs, id like to investigate how theyre designed in other applications (other than a submarine).