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Comparative study of Metallic and Polymer Composite Shells for Underwater Vessels Using FEA
Govindaraj, Moorthy,Narayanarao, Narasimha Murthy Heddale,Munishaiah, Krishna,Nagappa, Raghavendra Korean Society of Ocean Engineers 2013 International journal of ocean system engineering Vol.3 No.3
The present research was aimed at comparing performance of metallic and polymer composite shells of a typical underwater vessel of length and inner diameter of 1650 mm and 350 mm respectively, based on the critical buckling pressure for operating depth of 1000 m using ANSYS. High strength steel, aluminium alloy, titanium alloy, glass / epoxy and carbon / epoxy materials were examined. The results indicated weight savings of 46 % in carbon/epoxy and 31 % in glass / epoxy when compared with high strength steel, based on the thickness of the shell for sustaining 10 MPa buckling pressure.