Residual ultimate compressive strength of dented square plates

Raviprakash, A. V.; Prabu, B.; Alagumurthi, N.

doi:10.1016/j.tws.2012.04.009

Cited by 21 publications

(12 citation statements)

References 17 publications

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“…There is limited literature on the collapse behaviour of the corroded box girders. Several studies have been performed in (Saad-Eldeen et al 2011a, b, 2012, 2013b, 2013a, Saad- Figure 6 Post-collapse deformed stiffened plate (a) and thickness distribution (b) (Garbatov et al 2016b) Eldeen et al 2013c, Saad-Eldeen et al 2014) where the impact of the corrosion on several parameters, namely, the bending rigidity reduction, ultimate load capacity reduction, failure modes of the corroded stiffened panels was analysed and interesting fact has been discovered that the corrosion may lead to the material property changes.…”

Section: Box Structuresmentioning

confidence: 99%

“…Still, they were smaller than the ones studied in this paper, and therefore they had a smaller impact on the plate ultimate load. For thin square plates under uniaxial compression, Raviprakash et al (2012) reported that the variation of the size and angle of the orientation for longer dents reduces drastically the ultimate strength. Also, the effect of dent parameters on ultimate strength is magnified with increasing the plate thickness.…”

Section: Damaged Platesmentioning

confidence: 99%

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Review of Ultimate Strength Assessment of Ageing and Damaged Ship Structures

Tekgoz

Garbatov

Soares

2020

J. Marine. Sci. Appl.

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The objective of this work is to provide an overview of the ultimate strength assessment of ageing and damaged ship structures in the last decades. Particular attention is paid to the ultimate strength of plates, stiffened panels, box girders, and entire ship hull structures subjected to corrosion degradation, fatigue cracking, and mechanical damage caused by accidental loading or impact. A discussion on the effect of the cyclic load on the plate rigidity, re-yielding, and ultimate load capacity on the ship hull girder is also part of the present study. Finally, some conclusions and discussions about potential future work are provided, identifying that more studies about the impact of corrosion degradation on the structural behaviour of the stiffened panels and the overall hull girders are needed. Studies related to the dynamic collapse behaviour of corroded and damaged ship structures under time-variant load also requires additional attention.

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Section: Box Structuresmentioning

confidence: 99%

Section: Damaged Platesmentioning

confidence: 99%

Review of Ultimate Strength Assessment of Ageing and Damaged Ship Structures

Tekgoz

Garbatov

Soares

2020

J. Marine. Sci. Appl.

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“…They observed that as the dent location is closer to the unloaded plate edge the ultimate strength decreases compared to the central position. Raviprakash et al 2012 studied the influence of various dent parameters dent length, dent width, dent depth and angle of orientation of the dent on the static ultimate strength of thin square plates of different thicknesses under uniaxial compressive loading.…”

Section: Introductionmentioning

confidence: 99%

Ultimate strength formulations for FPSO stiffened panels under combined compression and shear with initial imperfections and damage

Rizzo

Caire

2018

Lat. Am. j. solids struct.

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Accidental collision of striking objects, such as a supply vessel, into the side panel of a FPSO highly influences its ultimate strength assessment. An empirical formula for predicting the ultimate strength of damaged stiffened panels under combined loading of shear and longitudinal compression is empirically derived in this work based on curve fitting of quasi-static nonlinear finite element FE analyses. Initial imperfections are introduced by scaling the first buckling mode shape and the damage is caused by residual deformation from a rigid sphere indentation. A pure shear loading is applied at several levels followed by compression loading using the modified Riks method for a number of sphere indentation damages. The suggested formula for a typical FPSO stiffened side shell panel presented an excellent correlation with the nonlinear FE results and can be particularly useful in the preliminary design phase no damage and for a quick estimation of the panel residual strength with indentation damage.

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“…Numerical assessment of the residual strength of engineering structures under various loading conditions, as exemplified about three decades ago in [35], has recently been applied to several structural elements, including dented cylinders [36,37], pipelines [38], steel plates [39][40][41][42], stiffened panels [43] and damaged box girders [44]. Numerical modelling has the advantage of incorporating full geometrical details and allows for the comparison of intact and damaged models that have identical properties.…”

Section: Introductionmentioning

confidence: 99%

Ultimate strength of locally damaged steel stiffened cylinders under axial compression

Cerik

2015

Thin-Walled Structures

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a b s t r a c tThis paper focuses on the load-carrying behaviour of large diameter thin-walled stiffened cylinders with local damage when subjected to axial compressive loading. The case considered in this study corresponds to the residual strength assessment of columns of floating offshore structures with damage resulting from collisions with supply vessels. Numerical simulations of axial compression tests, which examine the collapse behaviour and the ultimate strength of ring-and orthogonally stiffened cylinders dented by a knife-edged indenter, are presented. The behaviour of eight small-scale ring-stiffened cylinders and four orthogonally stiffened cylinder specimens is analysed. Finite element analyses were performed using the ABAQUS FEA software package, and a close agreement between the experimental test results and the numerical predictions was achieved. To assess the factors influencing the reduction in ultimate strength under axial compression and to clarify the progressive collapse behaviour, further analyses were performed on design examples of ring-and orthogonally stiffened cylinders, considering both intact and damaged conditions.

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Residual ultimate compressive strength of dented square plates

Cited by 21 publications

References 17 publications

Review of Ultimate Strength Assessment of Ageing and Damaged Ship Structures

Review of Ultimate Strength Assessment of Ageing and Damaged Ship Structures

Ultimate strength formulations for FPSO stiffened panels under combined compression and shear with initial imperfections and damage

Ultimate strength of locally damaged steel stiffened cylinders under axial compression

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