Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment
ObjectivesIn order to accurately evaluate the longitudinal ultimate strength of a hull girder under the cyclic bending moment, the effects of an elastic-perfectly plastic and Chaboche material model on the elastic shakedown and ultimate strength of the hull girder under the cyclic bending moment are...
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
2025-06-01
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| Series: | Zhongguo Jianchuan Yanjiu |
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| Online Access: | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03595 |
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| _version_ | 1849422905334562816 |
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| author | Huwei CUI Runwen HU Zemin CHEN Lu HUANG |
| author_facet | Huwei CUI Runwen HU Zemin CHEN Lu HUANG |
| author_sort | Huwei CUI |
| collection | DOAJ |
| description | ObjectivesIn order to accurately evaluate the longitudinal ultimate strength of a hull girder under the cyclic bending moment, the effects of an elastic-perfectly plastic and Chaboche material model on the elastic shakedown and ultimate strength of the hull girder under the cyclic bending moment are studied. MethodsThe nonlinear finite element method is used to carry out the ultimate strength numerical simulation of a double bottom bulk carrier considering the elastic shakedown under the cyclic bending moment. In this study, the Bauschinger effect of the material during the reverse loading of the structure and influence of the welding initial deformation and residual stress are considered. ResultsThe calculation results show that the welding initial deformation significantly reduces the lower limit of the elastic shakedown of bulk carrier, and the range of the elastic shakedown considering welding initial deformation and residual stress is the largest. After reaching the elastic shakedown under the cyclic bending moment, the ultimate strength of the bulk carrier considering the welding initial deformation and residual stress under hogging and sagging states are 7.15% and 5.68% higher than that under single loading respectively. ConclusionsThe welding initial deformation has a major impact on the elastic shakedown interval and elastic shakedown ultimate strength of the bulk carrier, which should be carefully considered in actual research and analysis. |
| format | Article |
| id | doaj-art-24b7b8d117d442778a75aec695cedf55 |
| institution | Kabale University |
| issn | 1673-3185 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj-art-24b7b8d117d442778a75aec695cedf552025-08-20T03:30:52ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852025-06-0120317418310.19693/j.issn.1673-3185.03595ZG3595Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending momentHuwei CUI0Runwen HU1Zemin CHEN2Lu HUANG3School of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing, ChinaSchool of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing, ChinaSchool of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing, ChinaChina Ship Development and Design Center, Wuhan 430064, ChinaObjectivesIn order to accurately evaluate the longitudinal ultimate strength of a hull girder under the cyclic bending moment, the effects of an elastic-perfectly plastic and Chaboche material model on the elastic shakedown and ultimate strength of the hull girder under the cyclic bending moment are studied. MethodsThe nonlinear finite element method is used to carry out the ultimate strength numerical simulation of a double bottom bulk carrier considering the elastic shakedown under the cyclic bending moment. In this study, the Bauschinger effect of the material during the reverse loading of the structure and influence of the welding initial deformation and residual stress are considered. ResultsThe calculation results show that the welding initial deformation significantly reduces the lower limit of the elastic shakedown of bulk carrier, and the range of the elastic shakedown considering welding initial deformation and residual stress is the largest. After reaching the elastic shakedown under the cyclic bending moment, the ultimate strength of the bulk carrier considering the welding initial deformation and residual stress under hogging and sagging states are 7.15% and 5.68% higher than that under single loading respectively. ConclusionsThe welding initial deformation has a major impact on the elastic shakedown interval and elastic shakedown ultimate strength of the bulk carrier, which should be carefully considered in actual research and analysis.http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03595ultimate strengthhull girdersbending momentselastic shakedownweldingwelding initial deformationwelding residual stress |
| spellingShingle | Huwei CUI Runwen HU Zemin CHEN Lu HUANG Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment Zhongguo Jianchuan Yanjiu ultimate strength hull girders bending moments elastic shakedown welding welding initial deformation welding residual stress |
| title | Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment |
| title_full | Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment |
| title_fullStr | Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment |
| title_full_unstemmed | Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment |
| title_short | Analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment |
| title_sort | analysis of ultimate strength of bulk carrier considering elastic shakedown under cyclic bending moment |
| topic | ultimate strength hull girders bending moments elastic shakedown welding welding initial deformation welding residual stress |
| url | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.03595 |
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