Optimization technics to identify the characteristics of a hydroformed structure
This paper presents an experimental/numerical methodology which aims to improve 3D welded tube considering their anisotropic effect, deometrical singularities found in the welded joint, and heat affected zone behaviour by hydroforming process. This process contributes to reduce the number of welding...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2010-01-01
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| Series: | International Journal for Simulation and Multidisciplinary Design Optimization |
| Subjects: | |
| Online Access: | https://www.ijsmdo.org/articles/smdo/pdf/2010/01/smdo2010006.pdf |
| _version_ | 1818644717425917952 |
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| author | Radi B. Cherouat A. El Hami A. Mahfoudh A. |
| author_facet | Radi B. Cherouat A. El Hami A. Mahfoudh A. |
| author_sort | Radi B. |
| collection | DOAJ |
| description | This paper presents an experimental/numerical methodology which aims to improve 3D welded tube considering their anisotropic effect, deometrical singularities found in the welded joint, and heat affected zone behaviour by hydroforming process. This process contributes to reduce the number of welding and assembly operations needed to generate complex structures, while improving the weight saving and quality of finished parts. In spite of the advances in the performance of this manufacturing technology, some problems are linked to particularities of certain raw materials and additional studies must be developed, like in the case of welded tubes. The experimental study is dedicated to the identification of stress-strain flow of the base metal and the heat-affected zone from the global measure of tube investigate the heat affected zone mechanical behaviour. Workpiece behaviour's models used to simulate the expansion tests, made it possible to highlight the combined effects of the inhomogeneous behaviour of basic material and heat affected zone, as well as the geometrical singularities found in the welded tubes. From the simulations carried out, it is clear the influence of the plastic flow behaviour of the welded tube in the final results (thickness distribution, stress instability, tube circularity, critical thinning and rupture). |
| first_indexed | 2024-12-17T00:19:17Z |
| format | Article |
| id | doaj.art-ad0ea0a849334194bfaf39a7be443b20 |
| institution | Directory Open Access Journal |
| issn | 1779-627X 1779-6288 |
| language | English |
| last_indexed | 2024-12-17T00:19:17Z |
| publishDate | 2010-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | International Journal for Simulation and Multidisciplinary Design Optimization |
| spelling | doaj.art-ad0ea0a849334194bfaf39a7be443b202022-12-21T22:10:37ZengEDP SciencesInternational Journal for Simulation and Multidisciplinary Design Optimization1779-627X1779-62882010-01-0141394710.1051/ijsmdo/2010006smdo2010006Optimization technics to identify the characteristics of a hydroformed structureRadi B.Cherouat A.El Hami A.Mahfoudh A.This paper presents an experimental/numerical methodology which aims to improve 3D welded tube considering their anisotropic effect, deometrical singularities found in the welded joint, and heat affected zone behaviour by hydroforming process. This process contributes to reduce the number of welding and assembly operations needed to generate complex structures, while improving the weight saving and quality of finished parts. In spite of the advances in the performance of this manufacturing technology, some problems are linked to particularities of certain raw materials and additional studies must be developed, like in the case of welded tubes. The experimental study is dedicated to the identification of stress-strain flow of the base metal and the heat-affected zone from the global measure of tube investigate the heat affected zone mechanical behaviour. Workpiece behaviour's models used to simulate the expansion tests, made it possible to highlight the combined effects of the inhomogeneous behaviour of basic material and heat affected zone, as well as the geometrical singularities found in the welded tubes. From the simulations carried out, it is clear the influence of the plastic flow behaviour of the welded tube in the final results (thickness distribution, stress instability, tube circularity, critical thinning and rupture).https://www.ijsmdo.org/articles/smdo/pdf/2010/01/smdo2010006.pdfhydroformingwelded tubeanisotropic plastic flownanoindentationnumerical simulation |
| spellingShingle | Radi B. Cherouat A. El Hami A. Mahfoudh A. Optimization technics to identify the characteristics of a hydroformed structure International Journal for Simulation and Multidisciplinary Design Optimization hydroforming welded tube anisotropic plastic flow nanoindentation numerical simulation |
| title | Optimization technics to identify the characteristics of a hydroformed structure |
| title_full | Optimization technics to identify the characteristics of a hydroformed structure |
| title_fullStr | Optimization technics to identify the characteristics of a hydroformed structure |
| title_full_unstemmed | Optimization technics to identify the characteristics of a hydroformed structure |
| title_short | Optimization technics to identify the characteristics of a hydroformed structure |
| title_sort | optimization technics to identify the characteristics of a hydroformed structure |
| topic | hydroforming welded tube anisotropic plastic flow nanoindentation numerical simulation |
| url | https://www.ijsmdo.org/articles/smdo/pdf/2010/01/smdo2010006.pdf |
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