Quantitative Measurement of Two-Dimensional Inclined Cracks by the Electric-Potential CT Method with Multiple Current Applications
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概要
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The electric-potential CT method proposed previously by three of the present authors was applied to quantitative measurements of location, angle and size of two-dimensional inclined cracks embedded in steel plates. In this experiment, a DC current was consecutively supplied between one of five pairs of electrodes placed on the top and bottom ends of the plates. Electric-potential distribution was measured along the side faces of the plate under each of these five current application conditions. Data on electric-potential were processed to reconstruct cracks by a least residual inverse analysis scheme, in which a least residual criterion was employed between the observed potential distributions and the computed ones for various assumed crack locations. When the residual was evaluated using a potential distribution obtained under any single current application condition, this scheme did not always give reasonable results. Simultaneous use of the potential distributions under five current application condition made it possible to determine the location, angle and size of cracks with good accuracies.
- 一般社団法人日本機械学会の論文
- 1988-01-15
著者
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HASHIMOTO Takeshi
Department of Operative Dentistry, Okayama University Dental School
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Hashimoto T
Univ. Electro‐communications Tokyo
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KUBO Shiro
Department of Mechanical Engineering and Systems, Graduate School of Engineering, Osaka University
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Yamawaki Hiroshi
Department Of Biology Faculty Of Science Osaka City University
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Yamawaki Hiroshi
Department Of Mechanical Engineering Osaka University
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SAKAGAMI Takahide
Department of Mechanical Engineering, Osaka University
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OHOJI Kiyotsugu
Department of Mechanical Engineering, Osaka University
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Kubo Shiro
Department Of Mechanical Engineering And Systems Graduate School Of Engineering Osaka University
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Kubo Shiro
Department Of Mechanical Engineering Osaka University
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Sakagami Takahide
Department Of Mechanical Engineering & Systems Osaka University
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Sakagami Takahide
Department Of Mechanical Engineering Osaka University
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Ohoji Kiyotsugu
Department Of Mechanical Engineering Osaka University
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Hashimoto Takeshi
Department Of Bioinformatics Graduate School Of Allied Health Sciences Faculty Of Medicine Osaka University
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