Toward ultimate bending moment of marine-based structures: mesh convergence study using the MST-3 box girder

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Abstract
In a nutshell, the box girder bending moment capacity is the sum of the bending moment capacity of each structural member. The main parameters affecting the box girder's longitudinal strength under pure bending moment and buckling are plate and column slenderness. Several methods have been proposed to assess the bending moment capacity of box girders. One method commonly known is the experiment method conducted by Nishihara using the 4-point bending method. The primary purpose of this study is to determine the effect of mesh convergence in Finite Element Analysis (FEA) on the experimental result. The finite element study has a principle similar to the experiment studies. The effect of the mesh convergence study is shown in the form of the error value towards the experimental result.