Numerical Analysis of Hot Cracking in Laser-Hybrid Welded Tubes
In welding experiments conducted on heavy wall pipes, the penetration mode (full or partial penetration) occurred to be a significant factor influencing appearance of solidification cracks. To explain the observed phenomena and support further optimization of manufacturing processes, a computational...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/520786 |
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| author | Moritz Oliver Gebhardt Andrey Gumenyuk Michael Rethmeier |
| author_facet | Moritz Oliver Gebhardt Andrey Gumenyuk Michael Rethmeier |
| author_sort | Moritz Oliver Gebhardt |
| collection | DOAJ |
| description | In welding experiments conducted on heavy wall pipes, the penetration mode (full or partial penetration) occurred to be a significant factor influencing appearance of solidification cracks. To explain the observed phenomena and support further optimization of manufacturing processes, a computational model was developed, which used a sophisticated strategy to model the material. High stresses emerged in the models in regions which showed cracking during experiments. In partial penetration welding, they were caused by the prevention of weld shrinkage due to the cold and strong material below the joint. Another identified factor having an influence on high stress localization is bulging of the weld. |
| format | Article |
| id | doaj-art-2e1ef2bb3d964a8e814bb0c527fe0381 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2e1ef2bb3d964a8e814bb0c527fe03812025-02-03T05:44:32ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/520786520786Numerical Analysis of Hot Cracking in Laser-Hybrid Welded TubesMoritz Oliver Gebhardt0Andrey Gumenyuk1Michael Rethmeier2Linkage & Suspension, TRW Automotive GmbH, LEF, Hansaallee 190, 40547 Düsseldorf, GermanyDivision 9.3 Welding Technology, BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, 12205 Berlin, GermanyDivision 9.3 Welding Technology, BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, 12205 Berlin, GermanyIn welding experiments conducted on heavy wall pipes, the penetration mode (full or partial penetration) occurred to be a significant factor influencing appearance of solidification cracks. To explain the observed phenomena and support further optimization of manufacturing processes, a computational model was developed, which used a sophisticated strategy to model the material. High stresses emerged in the models in regions which showed cracking during experiments. In partial penetration welding, they were caused by the prevention of weld shrinkage due to the cold and strong material below the joint. Another identified factor having an influence on high stress localization is bulging of the weld.http://dx.doi.org/10.1155/2013/520786 |
| spellingShingle | Moritz Oliver Gebhardt Andrey Gumenyuk Michael Rethmeier Numerical Analysis of Hot Cracking in Laser-Hybrid Welded Tubes Advances in Materials Science and Engineering |
| title | Numerical Analysis of Hot Cracking in Laser-Hybrid Welded Tubes |
| title_full | Numerical Analysis of Hot Cracking in Laser-Hybrid Welded Tubes |
| title_fullStr | Numerical Analysis of Hot Cracking in Laser-Hybrid Welded Tubes |
| title_full_unstemmed | Numerical Analysis of Hot Cracking in Laser-Hybrid Welded Tubes |
| title_short | Numerical Analysis of Hot Cracking in Laser-Hybrid Welded Tubes |
| title_sort | numerical analysis of hot cracking in laser hybrid welded tubes |
| url | http://dx.doi.org/10.1155/2013/520786 |
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