Experimental and numerical analysis of ultimate compressive strength of long-span stiffened panels

Liu, Bin; Yao, Xinnan; Lin, Yongshui; Wu, Weiguo; Soares, C. Guedes

doi:10.1016/j.oceaneng.2021.109633

Cited by 13 publications

(4 citation statements)

References 36 publications

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“…The location of the plated grillage on the actual ship was shown in Figure 1. Referring to the existing research findings [28,29] and the site equipment conditions, the geometric and plate thickness scaling ratios were determined to be 1:4 and 1:2, respectively. The dimensions of the plated grillage and the parts were shown in Figure 2.…”

Section: Specimensmentioning

confidence: 99%

“…In the previous experiments on the combined opening girders, it was found that the structure would fail in a complex manner such as instability and local buckling under the central vertical load applied from the plate [39]. Most of the existing plated grillage experiments focused on the failure behavior under longitudinal and transverse compressive loads, ignoring the effect of vertical bending loads from the plate [28,29]. Therefore, two loading conditions were designed.…”

Section: Simulation Settingsmentioning

confidence: 99%

“…Gan et al [27] analyzed the effects of the initial defects and framing specifications on the ultimate bearing capacity of the opening plated grillage under longitudinal compression loads, combining the classical reinforced plate theory and the nonlinear finite element method. As for the experiments, Liu et al [28,29] conducted the design of the loading device to investigate the failure behavior of the passenger ship opening plated grillage under axial compression loads, revealing the influence regulations of the initial defects, opening sizes, and some other parameters.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Studies on the Ultimate Bending Strength of Welded Plated Grillage with Combined Openings

Chen,

Zhou,

et al. 2024

JMSE

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Plated grillage with combined openings was susceptible to complex failure behaviors as the main load-bearing structure of the superstructure on passenger ships subjected to deck loads. Additionally, the deformation and stresses generated during the welding of the plated grillage complicated the prediction of its failure behavior. In this case, a new partitioned inherent strain method and nonlinear finite element method were used to simulate the welding and loading process, and experiments were designed and carried out to make comparisons, unveiling the influence regulations between the failure behavior of the structure and the loading condition, the initial welding state. This research on the failure mode analysis of plated grillages could provide references for the optimization of the structural form of plated grillages and the cargo loading scheme on the deck of a real ship.

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Section: Specimensmentioning

confidence: 99%

Section: Simulation Settingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Studies on the Ultimate Bending Strength of Welded Plated Grillage with Combined Openings

Chen,

Zhou,

et al. 2024

JMSE

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“…A uniaxial load is applied at all the nodes along the loading edge, and the ultimate load of the stiffened panel is determined from the peak value of the uniaxial load. This boundary condition is widely used in the ultimate compressive analysis of stiffened panels [40][41][42][43].…”

Section: Numerical Modellingmentioning

confidence: 99%

Multi-Scale Analysis for Assessing the Impact of Material Composition and Weave on the Ultimate Strength of GFRP Stiffened Panels

Liu

Zhang

Garbatov

2023

JMSE

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A micro-meso-macro analysis framework based on the multi-scale method was employed to analyse the mechanical behaviour of marine GFRP stiffened panels. The study aims to establish a procedure for assessing the impact of material composition and weave on the ultimate strength of GFRP stiffened panels. The ultimate strength assessment was an essential step in the design process, and the investigation of construction materials has a great benefit to the lightweight design of marine composite structures. The micro- and meso-scale RVE models of components used in GFRP materials are established, and their failure criteria and stiffness degradation models are created using the user-defined material subroutine VUMAT in ABAQUS. The equivalent material properties at the micro-scale (meso-scale) obtained by a homogenisation method are used to define the meso-scale (macro-scale) mechanical properties in the finite element analyses. The multi-scale method assesses the macro-mechanics of composites, and it is shown that the ultimate strength of GFRP stiffened panels is mainly determined by the failure of CSM fibre bundles and WR yarns. Parametric study of the meso-mechanics of composite materials can provide an analysis tool to obtain the optimal macro ultimate strength of the composite stiffened panel.

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An empirical formula to assess ultimate strength of initially deflected plate: Part 1 = propose the general shape and application to longitudinal compression

et al. 2022

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Experimental and numerical analysis of ultimate compressive strength of long-span stiffened panels

Cited by 13 publications

References 36 publications

Experimental and Numerical Studies on the Ultimate Bending Strength of Welded Plated Grillage with Combined Openings

Experimental and Numerical Studies on the Ultimate Bending Strength of Welded Plated Grillage with Combined Openings

Multi-Scale Analysis for Assessing the Impact of Material Composition and Weave on the Ultimate Strength of GFRP Stiffened Panels

An empirical formula to assess ultimate strength of initially deflected plate: Part 1 = propose the general shape and application to longitudinal compression

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