Re-analysis of fatigue data for welded joints using the notch stress approach
| Autor: | Ole Ø. Mouritsen, Michael Rygaard Hansen, Jes G. Andersen, Mikkel Melters Pedersen, Jimmi Wenderby |
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| Rok vydání: | 2010 |
| Předmět: |
Engineering
Welded joints Effective notch stress Mild notch joints Welding Levetidsvurdering Industrial and Manufacturing Engineering law.invention Stress (mechanics) Fatigue assessment law General Materials Science Reliability (statistics) Stupmsamlinger business.industry Mechanical Engineering Structural engineering Nominal stress Effektiv kærv spændinger Svejste samlinger Butt joints Mechanics of Materials Modeling and Simulation Butt joint Milde kærve Reduction (mathematics) business |
| Zdroj: | Pedersen, M M, Mouritsen, O Ø, Hansen, M R, Andersen, J G & Wenderby, J 2010, ' Re-analysis of fatigue data for welded joints using the notch stress approach ', International Journal of Fatigue, no. 32, pp. 1620 . https://doi.org/10.1016/j.ijfatigue.2010.03.001 |
| ISSN: | 0142-1123 |
| DOI: | 10.1016/j.ijfatigue.2010.03.001 |
| Popis: | Experimental fatigue data for welded joints have been collected and subjected to re-analysis using the notch stress approach according to IIW recommendations. This leads to an overview regarding the reliability of the approach, based on a large number of results (767 specimens). Evidently, there are some limitations in the approach regarding mild notch joints, such as butt joints, which can be assessed non-conservatively. In order to alleviate this problem, an increased minimum notch factor of Kw ⩾ 2.0 is suggested instead of the current recommendation of Kw ⩾ 1.6. The data for most fillet-welded joints agree quite well with the FAT 225 curve; however a reduction to FAT 200 is suggested in order to achieve approximately the same safety as observed in the nominal stress approach. |
| Databáze: | OpenAIRE |
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