Effect of pitting corrosion on local strength of hold frames of bulk carriers (2nd Report)—Lateral-distortional buckling and local face buckling

Effect of corrosion on the buckling of steel angle members – experimental study

“…In several experimental studies [7,9] the corrosion is modelled as a thickness reduction and parts of the member or the thickness were eliminated artificially. In numerical investigations also used thickness reduction for modelling the effect of corrosion [4][5][6].…”

“…In this case the t corr parameter means the depth of the pits. In the formation of the corrosion pattern the experiences of previous studies are applied [7,9], with two different pit diameters: d 1 = 12mm and d 2 = 25mm. Table 4 contains the members with localized, highly corroded cross-section reduction, with lower A corr and higher M corr values comparing to the A type specimens.…”

Behaviour of corroded steel angle compression members – numerical study

“…The effect of localized corrosion on plate buckling was investigated by Sadovsky and Dradcky [8]. Nakai et al carried out extensive analyses on hold frames of bulk carriers [9,10]. The research involved tensile tests, buckling tests, 3-and 4-point-bending tests and finite element analyses on pitting corroded elements.…”

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

“…They applied finite element analyses in order to study initial buckling, ultimate collapse and post-ultimate responses of the corroded plates and stiffened plates. Nakai and his collaborators [15,16] performed a series of nonlinear finite-element (FE) analyses with pitted plates and stiffened plates subjected to in-plane compressive loads and bending moments in order to investigate their behaviours. They also established a method for prediction of ultimate strength of plate and stiffened plate models with pitted corrosion.…”