On the Post-buckling of Corroded Steel Plates used in Marine Structures
On the Post-buckling of Corroded Steel Plates used in Marine Structures
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发表时间：
1999
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通讯作者：
A. Mateus;J. Witz
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作者：
A. Mateus;J. Witz
本文研究了船舶及相关海洋结构物中含缺陷钢板的屈曲和后屈曲行为。采用非线性有限元程序ABAQUS进行分析。一般腐蚀的影响被引入到有限元模型中使用均匀厚度减少方法和建议的准随机厚度表面模型。腐蚀板模型的结果表明，有显着的差异，在两个一般的腐蚀方法之间的板屈曲后行为的预测。抗压强度预测的均匀厚度减少方法产生了乐观的结果，因此，问题出现在其是否适合设计目的。
This paper investigates the buckling and post-buckling behaviour of imperfect steel plates used in ship and related marine structures. The analysis is carried out using the non-linear finite element program ABAQUS. The effects of general corrosion are introduced into the finite element models using the uniform thickness reduction approach and a proposed quasi-random thickness surface model. The results obtained for the corroded plate models show that there are significant discrepancies in the prediction of plate post-buckling behaviour between the two general corrosion approaches. The uniform thickness reduction approach for compressive strength predictions produces optimistic results and therefore the question arises over its adequacy for design purposes.