Ultimate strength analysis of stiffened plate variation on double bottom of Floating Production Storage Offloading (FPSO)

Abstract

Abstract Double bottom is part of the ship that must be evaluated from the loads for instance wave load acts on side hull and pressure from the outer bottom. The loads must be evaluated and investigated the effect on the double bottom structure. The objective of the present study is to analyze the ultimate strength of stiffened plate variation on the double bottom of the floating production storage offloading. The small section of stiffened plate with attached plating at the double bottom is considered to the analyzed. The numerical analysis is adopted to analyze the model. The stiffened plate is variated with the distance in terms of model breadth. The boundary condition is applied to the model including axial compression load. The behavior of the model is represented by stress and deformation. For the simple analysis, the welding residual stress, crack, and initial imperfection are not taken. The result obtains by the numerical analysis is presented together with the behavior in term of stress and deformation.

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