Dynamic DSPI Observation of Non-Uniformly Deformation in Tensile Experiments on Austenitic Stainless Steel SUS304(Optical Method 3)
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概要
- 論文の詳細を見る
A dynamic process in tensile experiment of austenitic stainless steel was observed by digital speckle pattern interferometry (DSPI) which enables us to observe entire process of whole field deformation. In plastic deformation state, localized deformation appeared as concentrated correlation fringes in a narrow band, which run over the specimen repeatedly. Correspondingly, a stress curve took some hills. In microscopic surface observation of a fractured specimens, martensite were found together with collapsed grain. It means that strain-induced martensitic transformation generates in part in heterogeneous structure of the material. These phenomena vary depending on carbon content. Dynamic DSPI presented here is expected as a new tool to invenstigate dynamic behavior of plastic deformation and fracture.
- 一般社団法人日本機械学会の論文
- 2001-10-20
著者
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Toyooka Satoru
Graduate School Of Science And Engineering Saitama University
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TOMINAGA Manabu
Department of Mechanical Engineering, Ibaraki National College of Technology
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TANIYAMA Hisanori
Department of Mechanical Engineering, Ibaraki National College of Technology
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Tominaga Manabu
Department Of Mechanical Engineering Ibaraki National College Of Technology
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Taniyama Hisanori
Department Of Mechanical Engineering Ibaraki National College Of Technology
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