Time-Division Observation of Plastic Deformation Process Using Digital Speckle Pattern Interferometry |
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| Authors: | Suprapedi Satoru Toyooka |
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| Institution: | (1) Graduate School of Science and Engineering, Saitama University, 255, Shimo-okubo, Urawa, Saitama 338, Japan |
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| Abstract: | Time-division digital speckle pattern interferometry to observe temporal variation of in-plane deformation fields of a whole process of plastic deformation until fracture was proposed. Experiment of tensile test of an aluminum plate exhibited dynamic movements of successive fringe patterns which were very complicated. They suggest that plastic deformation propagates nonlinearly in the specimen by repetition of energy relaxation processes and concentration processes.Presented at 1996 International Workshop on Interferometry (IWI ‘96), August 27-29, Wako, Saitama, Japan. |
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| Keywords: | plastic deformation speckle fringe boundary time-division digital speckle pattern interferometry |
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