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Study on Nondestructive Tomographic Visualization of Plane-Woven Fiber-Reinforced Rubber Using Optical Coherence Straingraphy

[+] Author Affiliations
Yoshitaro Sakata, Souichi Saeki, Takashi Saito, Junji Ohgi

Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan

Paper No. IMECE2010-40683, pp. 351-354; 4 pages
doi:10.1115/IMECE2010-40683
From:
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4446-5
  • Copyright © 2010 by ASME

abstract

Authors proposed Optical Coherence Straingraphy (OCS), which could visualize micromechanical information, e.g. strain, tomographically and non-destructively. This method can execute the speckle deformation analysis based on cross-correlation technique of synthetic images obtained before and after loading by Optical Coherence Tomography. In this study, applying OCS to composite materials, e.g. plain-woven fiber-reinforced rubber, the experimental feasibility study was carried out, compared with numerical simulated results by image-based FEM. Consequently, OCS could discover the strain concentration in the vicinity of the intersection of orthogonally oriented fiber bundles. It was confirmed that tomographic strain distribution had qualitative agreement with the simulated one. Therefore, OCS was verified to provide mechanical properties non-destructively as internal strain distribution at the micro scale resolution.

Copyright © 2010 by ASME

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