Some Investigations on the Methods of Measuring 3-Dimensional Plastic Deformations by Laser

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概要

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• The moire method and the holographic interferometry, which are effective for the measurement of large and small deformations respectively, are developed. The moire method proposed in this paper is founded on the interference between the grating printed on a specimen and Young's interference fringes instead of the reference grating. If Young's interference fringes are projected on to the specimen from two directions, two components of the displacement are obtained. Measurement of an incremental deformation is also possible when some sensitizer is affixed to the specimen and Young's interference fringes are projected on to it two times during deformation. As for the holographic interferometry, Enno's method is improved so that two families of the interference fringes corresponding to two components of the displacement may be obtained on the congruent images to each other. Fundamental data are provided about these methods.

• 一般社団法人日本機械学会の論文

著者

• Kato Kazunori

  Faculty Of Engineering Tokyo Institute Of Technology

• YAMAMOTO Fumio

  Nippon Electric Co.

• MUROTA Tadao

  Faculty of Engineering, Tokyo Institute of Technology.

• JIMMA Takashi

  Faculty of Engineering, Tokyo Institute of Technology.

• Murota Tadao

  Faculty Of Engineering Miyazaki University

関連論文

• Improvement of Method of Measuring Strain Using Interference Fringes of Diffracted Beams at Gratings on Specimens : Some Discussions on Multiplication Method
• Some Investigations on the Methods of Measuring 3-Dimensional Plastic Deformations by Laser
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• Analysis of Rolling of Bars by the Energy Method Using Finite Element Division
• Improvement of the Energy Method Using Finite Element Division and Application to Flat-rolling
• On the Method of Measuring Strain by Use of Diffraction at Mis-matched Moire Fringes
• Improvement of the Method of Measuring Shear Strain Using Interferometry of Diffraction Beams

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