Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-Sections
This paper is devoted to the hydroforming performances of toroidal pressure hulls with octagonal cross-sections, together with the buckling performances of hydroformed hulls. The octagonal cross-sections of toroidal preforms are inscribed from the circular cross-sections of perfect toroidal shells w...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/9/1475 |
| _version_ | 1797484801590034432 |
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| author | Xiaobin Liu Jian Zhang Chenyang Di Ming Zhan Fang Wang |
| author_facet | Xiaobin Liu Jian Zhang Chenyang Di Ming Zhan Fang Wang |
| author_sort | Xiaobin Liu |
| collection | DOAJ |
| description | This paper is devoted to the hydroforming performances of toroidal pressure hulls with octagonal cross-sections, together with the buckling performances of hydroformed hulls. The octagonal cross-sections of toroidal preforms are inscribed from the circular cross-sections of perfect toroidal shells with a 150 mm major radius, a 75 mm section radius, and a 1.058 mm wall thickness. The nonlinear finite-element method was employed to study the hydroforming and buckling performances under various hydroforming pressures. To verify the numerical findings, three nominally identical toroidal pressure hulls with discrete octagonal cross-sections were tentatively manufactured, internally hydroformed, and externally collapsed. The numerical and experimental data exhibited satisfactory agreement. It is indicated that the hydroforming technique could greatly enhance the loading capacity of toroidal pressure hulls. |
| first_indexed | 2024-03-09T23:09:42Z |
| format | Article |
| id | doaj.art-5270266201af4f37ba445c2f1e1c00f6 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T23:09:42Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-5270266201af4f37ba445c2f1e1c00f62023-11-23T17:46:42ZengMDPI AGMetals2075-47012022-09-01129147510.3390/met12091475Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-SectionsXiaobin Liu0Jian Zhang1Chenyang Di2Ming Zhan3Fang Wang4School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaShanghai Engineering Research Center of Hadal Science and Technology, Shanghai Ocean University, Shanghai 201306, ChinaThis paper is devoted to the hydroforming performances of toroidal pressure hulls with octagonal cross-sections, together with the buckling performances of hydroformed hulls. The octagonal cross-sections of toroidal preforms are inscribed from the circular cross-sections of perfect toroidal shells with a 150 mm major radius, a 75 mm section radius, and a 1.058 mm wall thickness. The nonlinear finite-element method was employed to study the hydroforming and buckling performances under various hydroforming pressures. To verify the numerical findings, three nominally identical toroidal pressure hulls with discrete octagonal cross-sections were tentatively manufactured, internally hydroformed, and externally collapsed. The numerical and experimental data exhibited satisfactory agreement. It is indicated that the hydroforming technique could greatly enhance the loading capacity of toroidal pressure hulls.https://www.mdpi.com/2075-4701/12/9/1475toroidal pressure hulloctagonal cross-sectionhydroformingcollapse |
| spellingShingle | Xiaobin Liu Jian Zhang Chenyang Di Ming Zhan Fang Wang Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-Sections Metals toroidal pressure hull octagonal cross-section hydroforming collapse |
| title | Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-Sections |
| title_full | Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-Sections |
| title_fullStr | Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-Sections |
| title_full_unstemmed | Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-Sections |
| title_short | Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-Sections |
| title_sort | buckling of hydroformed toroidal pressure hulls with octagonal cross sections |
| topic | toroidal pressure hull octagonal cross-section hydroforming collapse |
| url | https://www.mdpi.com/2075-4701/12/9/1475 |
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