A strength analysis of conventional and sandwich plate deck using finite element method

Abstract

Abstract Ship materials are required to have good strength but with the lightest mass possible. The faceplate layer is made of a material with high strength and stiffness, while the core layer is made of a material with lower strength, stiffness, and density. In this study, a PU composite was applied to ship sandwich plates. Strength analysis was carried out to determine the feasibility of applying the sandwich plate to the oil tanker deck using the Finite Element Method. Sandwich plate deck has a stress value of 139.73 MPa. When compared with conventional models, the difference in stress reaches 80.26 MPa or about 36.48% of conventional models. The highest stress on the sandwich model meets the permitted stress. This study proves that the sandwich plate system (SPS) could reduce stress in the tanker deck structure. Steel faceplate and polyurethane elastomer composite cores have outstanding potential to be applied as sandwich plate systems on ship decks.