An experimental and numerical investigation on ultimate strength of stiffened plates with opening and perforation corrosion
| Autor: | Deyu Wang, Jinju Cui |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Materials science Laser scanning business.industry Design of experiments Perforation (oil well) Shell (structure) 020101 civil engineering Ocean Engineering 02 engineering and technology Structural engineering 01 natural sciences 010305 fluids & plasmas 0201 civil engineering Corrosion Girder 0103 physical sciences Ultimate tensile strength Boundary value problem business |
| Zdroj: | Ocean Engineering. 205:107282 |
| ISSN: | 0029-8018 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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