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11424 Buckling Behaviour of Randomly Corroded Stiffened Steel Plates Using Gaussian Distribution Under Uniaxial Compression

Picture for 11424 Buckling Behaviour of Randomly Corroded Stiffened Steel Plates Using Gaussian Distribution
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Product Number: 51300-11424-SG
ISBN: 2011 11424 CP
Author: Zorareh Hadj Mohammad Esmaeil Nouri, Karim Moradi Dohezari
Publication Date: 2011
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This paper presents the results of an investigation into the post-buckling behavior and ultimate strength of imperfect corroded steel plates used in ship and other marine-related structures. A series of elasticplastic large deflection finite element analyses is performed on both-sides randomly corroded steel plates. The effects of general corrosion are introduced into the finite element models using a random thickness surface model considering Gaussian distribution with different standard deviation. The effects on plate compressive strength as a result of parametric variation of the corroded surface geometry are evaluated. A proposal on the effective thickness is concluded in order to estimate the ultimate strength and explore the post-buckling behavior of randomly corroded steel plates under uniaxial compression.

Key words: Buckling, Random Corrosion, Ultimate Strength, Stiffened Plate, FE Modeling.
This paper presents the results of an investigation into the post-buckling behavior and ultimate strength of imperfect corroded steel plates used in ship and other marine-related structures. A series of elasticplastic large deflection finite element analyses is performed on both-sides randomly corroded steel plates. The effects of general corrosion are introduced into the finite element models using a random thickness surface model considering Gaussian distribution with different standard deviation. The effects on plate compressive strength as a result of parametric variation of the corroded surface geometry are evaluated. A proposal on the effective thickness is concluded in order to estimate the ultimate strength and explore the post-buckling behavior of randomly corroded steel plates under uniaxial compression.

Key words: Buckling, Random Corrosion, Ultimate Strength, Stiffened Plate, FE Modeling.
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