Free bulging and nonlinear buckling of teardrop-shaped pressure hull
This study applied free bulging to fabricate a teardrop-shaped pressure hull and analyzed the nonlinear buckling behavior of this hull. A preform made from stainless steel plates was fabricated, involving blanking, bending, and welding. Then, a teardrop-shaped pressure hull was formed through free b...
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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/S2092678224000451 |
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| author | Jian Zhang Xiaode Ding Ming Zhan Xinhu Zhang |
| author_facet | Jian Zhang Xiaode Ding Ming Zhan Xinhu Zhang |
| author_sort | Jian Zhang |
| collection | DOAJ |
| description | This study applied free bulging to fabricate a teardrop-shaped pressure hull and analyzed the nonlinear buckling behavior of this hull. A preform made from stainless steel plates was fabricated, involving blanking, bending, and welding. Then, a teardrop-shaped pressure hull was formed through free bulging. Seven conical segments were installed inside the pressure hull. The segments near the poles had a nominal thickness of 0.851 mm, and the two middle segments of the preform had a nominal thickness of 1.084 mm. Theoretical and experimental analyses were conducted to determine the equivalent stress and yield load of the teardrop-shaped hull and preform. Subsequently, the buckling behavior of the fabricated hull was investigated. Finally, a nonlinear finite element method was used to analyze the bulging and buckling of the teardrop-shaped pressure hull. The findings indicate that free bulging contributes to promisingly manufacturing teardrop-shaped pressure hulls for underwater observatories and other related equipment. |
| format | Article |
| id | doaj-art-2afaf245287c4cf2aef69f44de4b10cf |
| institution | Kabale University |
| 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-2afaf245287c4cf2aef69f44de4b10cf2024-12-25T04:21:13ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822024-01-0116100626Free bulging and nonlinear buckling of teardrop-shaped pressure hullJian Zhang0Xiaode Ding1Ming Zhan2Xinhu Zhang3School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang, ChinaSchool of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang, ChinaSchool of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China; Corresponding author.School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an, ChinaThis study applied free bulging to fabricate a teardrop-shaped pressure hull and analyzed the nonlinear buckling behavior of this hull. A preform made from stainless steel plates was fabricated, involving blanking, bending, and welding. Then, a teardrop-shaped pressure hull was formed through free bulging. Seven conical segments were installed inside the pressure hull. The segments near the poles had a nominal thickness of 0.851 mm, and the two middle segments of the preform had a nominal thickness of 1.084 mm. Theoretical and experimental analyses were conducted to determine the equivalent stress and yield load of the teardrop-shaped hull and preform. Subsequently, the buckling behavior of the fabricated hull was investigated. Finally, a nonlinear finite element method was used to analyze the bulging and buckling of the teardrop-shaped pressure hull. The findings indicate that free bulging contributes to promisingly manufacturing teardrop-shaped pressure hulls for underwater observatories and other related equipment.http://www.sciencedirect.com/science/article/pii/S2092678224000451Pressure hullTeardrop-shaped preformFree bulgingBuckling |
| spellingShingle | Jian Zhang Xiaode Ding Ming Zhan Xinhu Zhang Free bulging and nonlinear buckling of teardrop-shaped pressure hull International Journal of Naval Architecture and Ocean Engineering Pressure hull Teardrop-shaped preform Free bulging Buckling |
| title | Free bulging and nonlinear buckling of teardrop-shaped pressure hull |
| title_full | Free bulging and nonlinear buckling of teardrop-shaped pressure hull |
| title_fullStr | Free bulging and nonlinear buckling of teardrop-shaped pressure hull |
| title_full_unstemmed | Free bulging and nonlinear buckling of teardrop-shaped pressure hull |
| title_short | Free bulging and nonlinear buckling of teardrop-shaped pressure hull |
| title_sort | free bulging and nonlinear buckling of teardrop shaped pressure hull |
| topic | Pressure hull Teardrop-shaped preform Free bulging Buckling |
| url | http://www.sciencedirect.com/science/article/pii/S2092678224000451 |
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