Vol.25, No.2, 2025, pp. 203–212
https://doi.org/10.69644/ivk-2025-02-0203  

TOWARD ULTIMATE BENDING MOMENT OF MARINE-BASED STRUCTURES: MESH CONVERGENCE STUDY USING THE MST-3 BOX GIRDER

Adika Maja Alif Utama1,2, Ristiyanto Adiputra3* , Aditya Rio Prabowo1,2** , Jung Min Sohn4 , Oleksiy Melnyk5 , Svitlana Onyshchenko5 , Nurul Muhayat1 , Wahyu Purwo Raharjo1 , Wibowo Wibowo1 , Yemi Kuswardi6

1) Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, INDONESIA

A.R. Prabowo https://orcid.org/0000-0001-5217-5943 , **email: aditya@ft.uns.ac.id

 N. Muhayat https://orcid.org/0000-0002-1086-7826 ; W.P. Raharjo https://orcid.org/0000-0001-7158-0004 ;

W. Wibowo https://orcid.org/0000-0003-2849-7330

2) Laboratory of Design and Computational Mechanics, Faculty of Engineering, Universitas Sebelas Maret, Surakarta, INDONESIA

3) Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, INDONESIA

R. Adiputra https://orcid.org/0000-0003-3630-9432 , **email: ristiyanto.adiputra@brin.go.id

4) Department of Naval Architecture and Marine Systems Engineering, Pukyong National University, Busan, KOREA

J.M. Sohn https://orcid.org/0000-0002-6495-479X

5) Department of Navigation and Maritime Safety, Odesa National Maritime University, Odesa, UKRAINE

O. Melnyk https://orcid.org/0000-0001-9228-8459 ; S. Onyshchenko https://orcid.org/0000-0002-9660-1921

6) Department of Mathematics Education, Universitas Sebelas Maret, Surakarta, INDONESIA

Y. Kuswardi https://orcid.org/0009-0008-8101-9630

 

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.

Keywords: • box girder • bending moment • structural failure • finite element method

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