Effect of quality control parameter variations on the fatigue performance of aluminum friction stir welded joints
| Autor: | Shi Hui Guo, Scott Walbridge, Rakesh Ranjan, L. H. Shah, A.P. Gerlich |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
chemistry.chemical_element 02 engineering and technology Welding Industrial and Manufacturing Engineering law.invention 0203 mechanical engineering law Aluminium General Materials Science business.industry Mechanical Engineering Work (physics) Fracture mechanics Structural engineering 021001 nanoscience & nanotechnology 020303 mechanical engineering & transports Lap joint chemistry Mechanics of Materials Modeling and Simulation Butt joint 0210 nano-technology business Reduction (mathematics) Failure mode and effects analysis |
| Zdroj: | International Journal of Fatigue. 118:150-161 |
| ISSN: | 0142-1123 |
| DOI: | 10.1016/j.ijfatigue.2018.09.004 |
| Popis: | This paper describes fatigue tests performed on 6061-T651 and 5083-H321 aluminum friction stir welded joints with dimensions and loading conditions typical for structural applications. Butt and lap joint details with various defects intentionally introduced were tested under tension-only constant and variable amplitude loading conditions. In this paper, the fatigue test results are presented along with supporting metallurgical and nonlinear fracture mechanics analyses. Based on this work, it is concluded that kissing bond defects on the order of 0.3–1.0 mm can result in a significant fatigue life reduction and a shift in the failure mode to the weld root. The investigated toe-flash defect had less of an effect on fatigue performance. The lap joint did not perform as well as the butt joint detail. |
| Databáze: | OpenAIRE |
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