Ultimate strength of hull structural stiffened plate with pitting corrosion damage under unaxial compression

被引：45

作者：

Zhang, Yan ^{[1
]}

Huang, Yi ^{[2
]}

Meng, Fanlei ^{[3
]}

机构：

[1] Harbin Inst Technol, Sch Naval Architecture & Ocean Engn, Weihai 264209, Peoples R China

[2] Dalian Univ Technol, Sch Naval Architecture Engn, Dalian 116024, Peoples R China

[3] CNOOC EnerTech Safety & Environm Protect Co, Tianjin 300457, Peoples R China

来源：

MARINE STRUCTURES | 2017年 / 56卷

基金：

中国国家自然科学基金;

关键词：

Ultimate strength; Corroded volume loss; Pitting corrosion; Stiffened plate; Hull structure; STEEL PLATES; BIAXIAL COMPRESSION; LOCALIZED CORROSION; LATERAL PRESSURE; HOLD FRAMES; PART II; PANELS; CAPACITY;

D O I：

10.1016/j.marstruc.2017.07.006

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Pitting corrosion can cause the ultimate strength degradation of hull structure. This research aims at the development of ultimate strength calculation formula of pitted stiffened plates under unaxial compression. Firstly, the relative parameters (such as sizes of stiffened plates, sizes and shape of pits, initial geometric imperfection and residual stresses of stiffened plates, boundary condition and type and size of finite element) of pitted stiffened plates in the finite element analysis were analyzed and assumed. Secondly, the effects of a few factors (such as distribution status, depth and position of pits, number of longitudinal stiffeners and sizes of stiffened plates) on the ultimate strength with respect to the corroded volume loss were discussed. Lastly, the ultimate strength reduction formulae of pitted stiffened plates based on corroded volume loss were obtained by the data analysis from lots of nonlinear finite element analyses. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：117 / 136

页数：20

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