Strength of steel plates with both-sides randomly distributed with corrosion wastage under uniaxial compression

Khedmati, Mohammad Reza; Roshanali, Mohammad Mahdi; Nouri, Zorareh Hadj Mohammad Esmaeil

doi:10.1016/j.tws.2010.10.002

Cited by 52 publications

(15 citation statements)

References 15 publications

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“…Jiang and Soares investigated pitted steel plates under biaxial compression [6]. Khedmati et al analysed corroded plates with both-sided randomly distributed pits under uniaxial compression [7]. The effect of localized corrosion on plate buckling was investigated by Sadovsky and Dradcky [8].…”

Section: Literature Overviewmentioning

confidence: 99%

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Behaviour of corroded steel angle compression members – numerical study

Oszvald

Dunai

2013

Per. Pol. Civil Eng.

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Section: Literature Overviewmentioning

confidence: 99%

“…The corrosion is modelled by thickness reduction similarly to the previous numerical studies [5][6][7]. In the ANSYS [15] finite element software environment a 4-node shell element (SHELL 181) is applied, which can model thin and moderately thick plated structures and it is well-suited for large strain nonlinear applications.…”

Section: Corrosion Modellingmentioning

confidence: 99%

Behaviour of corroded steel angle compression members – numerical study

Oszvald

Dunai

2013

Per. Pol. Civil Eng.

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“…Seo et al [21] validated the equivalent plate thickness approach for ultimate strength analysis of stiffened panels with non-uniform plate thickness. Khedmati et al [13] made an extensive numerical study on the strength of steel plates with both-sides randomly distributed with corrosion wastage under uniaxial compression. They also proposed an effective thickness formulation for strength assessment of these plates under uniaxial compression [12].…”

Section: Research Background On the Strength Of Corroded Elementsmentioning

confidence: 99%

“…t eq (lower Bound) = 0.697α − 0.7 (13) Eqs. (12) or (13) can be used in order to obtain estimates of the equivalent thickness for a pitted plate.…”

Section: Proposal On Effective Thicknessmentioning

confidence: 99%

An effective thickness proposal for strength evaluation of one-side pitted steel plates under uniaxial compression

Nouri

Khedmati

Sadeghifard

2012

Lat. Am. j. solids struct.

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This paper presents the results of an investigation into the post-buckling behaviour and ultimate strength of imperfect pitted steel plates used in ship and other marine-related structures. A series of elastic-plastic large deflection finite element analyses is performed on pitted steel plates. The effects of pitting corrosion on one side of the plates are introduced into the finite element models. The effects on plate compressive strength as a result of parametric variation of the pitting corrosion geometry are evaluated. A proposal on the effective thickness is concluded in order to estimate the ultimate strength and explore the post-buckling behaviour of pitted steel plates under uniaxial compression.

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“…Many efforts have been directed to study the mechanical behavior of ordinary corroded steel specimens or structures. For example, Khedmati et al [11] investigated the strength and failure behavior of randomly corroded steel specimens subjected to in-plane compression load, and found that the reduction of the buckling strength was greater than that of the ultimate strength. Nakai et al [12] carried out tensile and compressive buckling tests of steel specimens subject to pitting corrosion, and suggested that pitting corrosion results in a significant reduction in tensile strength and buckling strength of steel specimens.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Corroded High Performance Steel Specimens Based on 3d Scanning

2019

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An experimental study was performed to investigate the impact of corrosion on the mechanical properties of high performance steel (HPS) specimens. Fifteen HPS specimens were designed and subjected to electrochemically accelerated corrosion. The geometric features of the specimens were quantified by using 3D scanning technology. Then, tensile tests were employed to study the mechanical properties of the corroded HPS specimens. The relationship between the mechanical properties of the corroded HPS specimens and corrosion damage was discussed in detail. Meanwhile, a three-stage constitutive model was proposed to evaluate the mechanical behaviors of the degraded HPS specimens. Finally, a finite element model based on 3D scanning technology was developed and verified to investigate the stress distribution and failure of the tensile specimens. Results show that the maximum cross-sectional loss ratio is a suitable parameter for describing the mechanical properties of the degraded HPS specimens. The failure modes of the HPS specimens gradually vary from ductile to brittle as varies from 0% to 50.28%. It is found that the yield or ultimate load decreases linearly as the .increases. The corrosion-induced ductility reduction has an exponential relationship with. A comparison between the numerical results and experimental results shows that the proposed three-stage constitutive model is rational.

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Strength of steel plates with both-sides randomly distributed with corrosion wastage under uniaxial compression

Cited by 52 publications

References 15 publications

Behaviour of corroded steel angle compression members – numerical study

Behaviour of corroded steel angle compression members – numerical study

An effective thickness proposal for strength evaluation of one-side pitted steel plates under uniaxial compression

Mechanical Properties of Corroded High Performance Steel Specimens Based on 3d Scanning

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