Study on Deformation of Polycrystalline Aluminum Alloy Using Moiré Interferometry |
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| Authors: | Z. Guo H. Xie B. Liu F. Dai P. Chen Q. Zhang F. Huang |
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| Affiliation: | (1) FML, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, People’s Republic of China;(2) State Key Laboratory of Explosion Science and Technology, Beijing, 100084, People’s Republic of China |
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| Abstract: | Polycrystalline aluminum alloy is manufactured by annealing, compared to the width of the specimen, the size of the grains can not be omitted, which makes the specimen anisotropic. Under uniaxial tension, the deformation field is inhomogeneous. In this study, moiré interferometry is successfully applied to measure the deformation of the polycrystalline specimen. The experimental results presented the stress versus strain responses of the marked grains in different orientations and different shapes. By using fringe centering method, the strain distributions under certain load in the centers and on the boundaries of the grains are analyzed. |
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| Keywords: | Polycrystalline aluminum alloy Grain boundary Moiré interferometry In-plane deformation Strain |
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