Hollow tube structures subjected to compressive loading: implementation of the pitting corrosion effect in nonlinear FE analysis

Pratama, Anandito Adam; Prabowo, Aditya Rio; Muttaqie, Teguh; Muhayat, Nurul; Ridwan, Ridwan; Cao, Bo; Laksono, Fajar Budi

doi:10.1007/s40430-023-04067-3

Cited by 16 publications

(4 citation statements)

References 53 publications

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“…This underlines the sensitivity of buckling loads to mesh size and its impact on the structural response. These results regarding the sensitivity of the mesh size to the maximum compressive strength were in accordance with the study conducted by Pratama et al [28]. The study further emphasizes the critical role of structure stiffness in determining buckling behavior, elucidating that the T bar stiffener type imparts greater stiffness compared to the angle bar and flat bar stiffeners.…”

Section: Discussion Of the Resultssupporting

confidence: 91%

Strength Assessment of Stiffened-Panel Structures against Buckling Loads: FE Benchmarking and Analysis

Sholikhah,

Ridwan,

Prabowo

et al. 2024

Civ Eng J

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This research endeavors to examine the effect of stiffener shapes on the structural capacity of stiffened-plate structures, specifically focusing on Tee (T), Angle (L), and Flat (I) stiffened plates. The primary objectives are threefold: firstly, to quantify the critical load values during the buckling phenomenon for T, L, and I stiffened plates; secondly, to assess model deformation upon failure; and thirdly, to investigate whether the buckling behavior of T, L, and I stiffened plates correlates with distinct failure patterns. Employing numerical simulation through the finite element method, this study sheds light on previously unexplored aspects of structural behavior. The findings indicate that angle stiffeners exhibit superior load-bearing performance compared to flat bars. Notably, the research reveals a substantial increase in maximum compressive load by at least 15.90% with Tee bar and 8.25% with angle bar stiffeners when the stiffened panels undergo a 5 mm displacement, presenting a potential avenue for structural enhancement. Additionally, the study demonstrates that T bars outperform in terms of resisting buckling. Noteworthy is the novel approach of examining the combined effect of transverse frame, longitudinal frame, and hull girder under buckling scenarios, a facet not explored in previous research. Furthermore, the utilization of steel S355JR-EN10210 as a material introduces a unique dimension not previously considered in these scenarios. Doi: 10.28991/CEJ-2024-010-04-03 Full Text: PDF

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Section: Discussion Of the Resultssupporting

confidence: 91%

Strength Assessment of Stiffened-Panel Structures against Buckling Loads: FE Benchmarking and Analysis

Sholikhah,

Ridwan,

Prabowo

et al. 2024

Civ Eng J

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“…The concept of reducing simulation time while maintaining calculation accuracy may be extended to computationally simulate structures made of sophisticated materials such as composites, graphene, and so on [37][38][39][40][41][42]. Furthermore, the effects of materials under harsh environment [43][44][45][46][47][48][49][50], such as cold region and corrosive-prone water area are potentially to be used as material properties to develop rapid-estimating mathematical forms of structural behaviors based on the potentially sailing routes.…”

Section: Transverse Frame Modelingmentioning

confidence: 99%

Effect of design parameters on the ultimate strength and collapse behaviour of stiffened panels

Hanif

Adiputra²,

Prabowo

et al. 2023

J Appl Eng Science

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Research about stiffened panel applications in ships has massively progressed with the amount of several methods to analyze it. Various studies had been conducted on stiffened panels using Finite Element Method (FEM). However, none have thoroughly explored the most optimal and efficient analysis methods and settings. Given the growing importance of FEM in reliability analysis for ship structures, particularly stiffened panels, a comprehensive study comparing different approaches is of paramount significance. Such research would not only streamline time-consuming procedures but also offer invaluable recommendations to advance the field's understanding and practical applications. In this paper, a finite element analysis study was done to analyze the influence of several parameter modeling of stiffened panels not only to achieve the models' ultimate strength value and collapse behavior but also to offer practical recommendations on the most optimal and efficient methods for analyzing stiffened panels through FEM. Conducting modification of three variations of the model configuration, four variations of boundary condition, and four variations of transverse stiffener modeling to compare each other. Running time consumed when simulations are calculated in ANSYS APDL was also being considered. The results showed a significant difference in modifying the model configuration's case, while in contrast, the modification of boundary conditions and transverse stiffener modeling only showed a slight difference in ultimate strength value. In addition, modification of transverse stiffener geometry only gave the difference by around 0.5 MPa. The model configuration case (A1 v A2) showed the most remarkable running time difference, which reached six times difference.

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“…In civil engineering, thin-walled metal structures often play an important role in impact buffering at critical locations of bridges and buildings. For example, in the event of accidents like ship bridge collisions and vehicle column collisions, metal tube sleeves can provide effective impact protection [ 3 , 4 ]. Due to the stable axial force and good balance of the spatial shape of the tube, thin-walled metal structures are commonly used in engineering [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Axial Crushing Theory and Optimization of Lattice-Filled Multicellular Square Tubes

Zhou,

Liu,

Rong

et al. 2024

Materials

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A lattice-filled multicellular square tube features a regular cross-sectional shape, good energy consumption, and good crashworthiness, which is suitable for the design of energy absorbers in various protection fields such as automobiles, aerospace, bridges, etc. Based on the super folding theory, two reference planes are set to refine the energy consumption zone of the super folding element in this study. The energy consumption calculation of convex panel stretching is involved, and the critical crushing force formula is introduced in this study. Meanwhile, the calculation method from a single-cell square tube to a multicellular thin-walled square tube is extended and the structural optimization is investigated, in which the NSGAII algorithm is used to obtain the Pareto front (PF) of the crashworthiness performance index of the square multicellular tubes, the Normal Boundary Intersection (NBI) method is adopted to select knee points, and the influence of different cross-sectional widths on the number, as well as the thickness, of cells are discussed. This study’s results indicate that the theoretical value is consistent with that obtained from the numerical simulation, meaning that the improved theoretical model can be applied to predict the crashworthiness of multicellular square cross-sectional tubes. Also, the optimization method and study results proposed in this study can provide a reference for the design of square lattice multicellular tubes.

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Hollow tube structures subjected to compressive loading: implementation of the pitting corrosion effect in nonlinear FE analysis

Cited by 16 publications

References 53 publications

Strength Assessment of Stiffened-Panel Structures against Buckling Loads: FE Benchmarking and Analysis

Strength Assessment of Stiffened-Panel Structures against Buckling Loads: FE Benchmarking and Analysis

Effect of design parameters on the ultimate strength and collapse behaviour of stiffened panels

Axial Crushing Theory and Optimization of Lattice-Filled Multicellular Square Tubes

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