ANALYTICAL INVESTIGATIONS ON STIFFENED STEEL AND CARBON FIBRE REINFORCED POLYMER CYLINDRICAL SUBMARINE PRESSURE HULL

A submarine is submersible which operates in deep water for a long period of time and is subjected to a hydrostatic pressure at a specified design depth. Military submarines are exposed to very severe loading conditions due to firing of torpedoes, explosion of mines, etc. The conventional submarines made of high strength steel may adversely affects its performance due to very large dead weight preventing the immediate resurfacing of the submersible under emergency conditions. Carbon Fibre Reinforced Polymer (CFRP) is a very strong light weight material which can be used for constructing submarine pressure hull. In the pr esent work a comparative study of steel and CFRP submarine pressure hull is conducted using Finite Element Analysis. The linear static analysis and buckling analysis is done to study the behaviour of steel and CFRP pressure hull.