Application of Digital Image Correlation for Comparison of Deformation Response in Fusion and Friction Stir Welds
| Autor: | Rory P. Bigger, Kathryn A. Dannemann, Alexander J. Carpenter, Nikki Scott, Carl E. Weiss |
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| Rok vydání: | 2016 |
| Předmět: |
Digital image correlation
Materials science Materials Science (miscellaneous) Alloy 02 engineering and technology Welding engineering.material 01 natural sciences Gas metal arc welding law.invention law Deflection (engineering) 0103 physical sciences 010302 applied physics business.industry technology industry and agriculture Structural engineering respiratory system Strain rate 021001 nanoscience & nanotechnology Mechanics of Materials Solid mechanics engineering 0210 nano-technology business Ballistic impact |
| Zdroj: | Journal of Dynamic Behavior of Materials. 2:347-364 |
| ISSN: | 2199-7454 2199-7446 |
| Popis: | The deformation response of welded aluminum plate was evaluated at high and low strain rates. Mechanical and ballistic experiments were conducted on 2.5 cm thick samples obtained from full penetration welds for welded aluminum 5083-H131 plate. Similar experiments were also conducted for the aluminum 5083 alloy as a baseline for comparison. Experiments were designed to compare the deformation response and ballistic performance differences for fusion welds versus friction stir welds. The fusion welds were processed using gas metal arc welding. The low strain rate deformation response was evaluated with three-point bend tests at an approximate strain rate of 1 s−1. The high strain rate response of the three materials was assessed using ballistic impact experiments at a range of velocities. Digital image correlation analysis was applied to gain insight into the deformation response through quantification of the strain and deflection profiles. The deformation response differences are compared for the welds versus the baseline aluminum alloy. |
| Databáze: | OpenAIRE |
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