An experimental and numerical investigation on ultimate strength of stiffened plates with opening and perforation corrosion

被引：28

作者：

Cui, Jinju ^{[1
,2
]}

Wang, Deyu ^{[1
,2
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai, Peoples R China

[2] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai, Peoples R China

来源：

OCEAN ENGINEERING | 2020年 / 205卷

基金：

中国国家自然科学基金;

关键词：

Stiffened plates with openings; Experiments; Ultimate strength; Collapse mechanism; Perforation; COMBINED TRANSVERSE THRUST; THIN STEEL PLATES; LATERAL PRESSURE; BENDING MOMENT; PANELS; RELIABILITY; BEHAVIOR;

D O I：

10.1016/j.oceaneng.2020.107282

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：

Stiffened plates with openings exist in ship structures such as longitudinal girders and side shell platforms etc. Different from intact structures, the ultimate strengths for such kind of structures have not been extensively studied yet. In this paper, experiments have been designed and carried out to investigate the ultimate strengths and collapse behavior of stiffened plates with openings, and attached structures are introduced with simplified square tubes, and corrosion caused degradations are introduced and simplified as perforations. Three experimental models are employed to study the effects of perforation distribution. Additionally, numerical studies have been performed with Nonlinear Finite Element Analysis (NFEA) and results match well with the experimental results, based on the measured initial deflections by laser scanning technique. Collapse shapes have also been compared and analyzed, and influences of different types of initial deflections and boundary conditions on ultimate strength have been investigated. The results shown in this paper can be helpful for understanding the mechanism of structural collapse, and provide reference for the ultimate strength experimental designs of such structures.

引用

页数：16

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