Residual strength of corroded ring-stiffened cylinder structures under external hydrostatic pressure
Corrosion damage to submarine pressure hulls is a crucial consideration during the structural design phase because it diminishes the structural strength of a submarine, reducing its operational depth and posing a severe risk to the life of the crew. This necessitates using a validated analytical met...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | International Journal of Naval Architecture and Ocean Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2092678224000098 |
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| author | Sang-Hyun Park Su-Min Lee Youngjae Yu Sang-Rai Cho |
| author_facet | Sang-Hyun Park Su-Min Lee Youngjae Yu Sang-Rai Cho |
| author_sort | Sang-Hyun Park |
| collection | DOAJ |
| description | Corrosion damage to submarine pressure hulls is a crucial consideration during the structural design phase because it diminishes the structural strength of a submarine, reducing its operational depth and posing a severe risk to the life of the crew. This necessitates using a validated analytical method to estimate the residual strength and assess the safety of corrosion-affected pressure hulls. This paper presents an experimental and numerical investigation of the residual strength of corroded ring-stiffened cylinders, which are typical components of submarine pressure hulls, the main legs of semi-submersibles, and Floating Offshore Wind Turbine (FOWT) foundations. Four steel ring-stiffened cylinder models were fabricated: two remained intact, whereas the other two were artificially corroded by machining. Hydrostatic collapse tests were conducted in a pressure chamber. To evaluate the effect of initial shape imperfections caused by welding fabrication on the strength of the structure, the initial shape imperfections were measured using a three-dimensional coordinate measuring machine. The experimental results illustrate a significant reduction in the residual strengths of the two damaged models compared with those of the intact models. The collapse processes simulated using the Abaqus software package are presented, demonstrating a close agreement between the experimental results and numerical predictions. |
| format | Article |
| id | doaj-art-61ab0cb57b98403fb65877adf1bcbae7 |
| institution | DOAJ |
| issn | 2092-6782 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Naval Architecture and Ocean Engineering |
| spelling | doaj-art-61ab0cb57b98403fb65877adf1bcbae72025-08-20T02:39:25ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822024-01-011610059010.1016/j.ijnaoe.2024.100590Residual strength of corroded ring-stiffened cylinder structures under external hydrostatic pressureSang-Hyun Park0Su-Min Lee1Youngjae Yu2Sang-Rai Cho3UlsanLab Inc., Ulsan, Republic of KoreaUlsanLab Inc., Ulsan, Republic of KoreaUlsanLab Inc., Ulsan, Republic of KoreaCorresponding author.; UlsanLab Inc., Ulsan, Republic of KoreaCorrosion damage to submarine pressure hulls is a crucial consideration during the structural design phase because it diminishes the structural strength of a submarine, reducing its operational depth and posing a severe risk to the life of the crew. This necessitates using a validated analytical method to estimate the residual strength and assess the safety of corrosion-affected pressure hulls. This paper presents an experimental and numerical investigation of the residual strength of corroded ring-stiffened cylinders, which are typical components of submarine pressure hulls, the main legs of semi-submersibles, and Floating Offshore Wind Turbine (FOWT) foundations. Four steel ring-stiffened cylinder models were fabricated: two remained intact, whereas the other two were artificially corroded by machining. Hydrostatic collapse tests were conducted in a pressure chamber. To evaluate the effect of initial shape imperfections caused by welding fabrication on the strength of the structure, the initial shape imperfections were measured using a three-dimensional coordinate measuring machine. The experimental results illustrate a significant reduction in the residual strengths of the two damaged models compared with those of the intact models. The collapse processes simulated using the Abaqus software package are presented, demonstrating a close agreement between the experimental results and numerical predictions.http://www.sciencedirect.com/science/article/pii/S2092678224000098Corrosion damageRing-stiffened cylinderCollapse testResidual strengthInitial shape imperfection |
| spellingShingle | Sang-Hyun Park Su-Min Lee Youngjae Yu Sang-Rai Cho Residual strength of corroded ring-stiffened cylinder structures under external hydrostatic pressure International Journal of Naval Architecture and Ocean Engineering Corrosion damage Ring-stiffened cylinder Collapse test Residual strength Initial shape imperfection |
| title | Residual strength of corroded ring-stiffened cylinder structures under external hydrostatic pressure |
| title_full | Residual strength of corroded ring-stiffened cylinder structures under external hydrostatic pressure |
| title_fullStr | Residual strength of corroded ring-stiffened cylinder structures under external hydrostatic pressure |
| title_full_unstemmed | Residual strength of corroded ring-stiffened cylinder structures under external hydrostatic pressure |
| title_short | Residual strength of corroded ring-stiffened cylinder structures under external hydrostatic pressure |
| title_sort | residual strength of corroded ring stiffened cylinder structures under external hydrostatic pressure |
| topic | Corrosion damage Ring-stiffened cylinder Collapse test Residual strength Initial shape imperfection |
| url | http://www.sciencedirect.com/science/article/pii/S2092678224000098 |
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