Development of a Strain Measurement Method for Non-Plane Specimens by Means of Computer Picture Processing

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概要

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• Integrity Tests of the Fast Breeder Reactor components are often conducted at an elevated temperature, say 550℃. Since high-temperature strain measurement using special strain gauges is costly and unappropriate for large and repeated strains, the authors have developed an optical strain measurement method and system based on computer picture processing and the triangulation principle. The present method enables us to measure the strain in specimen with curved surfaces. Its operation is also easy, because of the automatic distinction of marks from noises. The verification tests with a plate specimen and a cylindrical one are performed under elevated temperatures. The results show that the present method is very suitable to the tests under elevated temperatures and that the measurement error or strain is within 0.2% (2000μ), which is reasonable considering the limitation of hardware.

• 1988-04-15

著者

• Yoshioka Akira

  Department of Clinical Research, Maizuru Medical Center

• Miyoshi A

  Techincal Research Institute Hazama-gumi

• Yagawa G

  Univ. Tokyo Tokyo Jpn

• Yagawa Genki

  Quest Univ. Tokyo

• Yagawa Genki

  Department Of Quantum Engineering And Systems Science University Of Tokyo

• Yagawa Genki

  Department Of Nuclear Engineering University Of Tokyo

• MIYOSHI Akio

  Techincal Research Institute, Hazama-gumi

• SONEDA Naoki

  Department of Nuclear Engineering, Faculty of Engineering, University of Tokyo

• Yoshioka Akira

  Department Of Applied Biological Chemistry Shizuoka University

• Yoshioka Akira

  Department Of Nuclear Engineering Faculty Of Engineering University Of Tokyo

• Soneda Naoki

  Department Of Nuclear Engineering Faculty Of Engineering University Of Tokyo

• Miyoshi Akio

  Techincal Research Institute Hazama-gumi

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