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Proceedings Article

Damage inspection of fiber reinforced polymer-concrete systems using a distant acoustic-laser NDE technique

[+] Author Affiliations
Tzu-Yang Yu

Univ. of Massachusetts Lowell (USA)

Robert Haupt

MIT Lincoln Lab. (USA)

Proc. SPIE 7649, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010, 76491J (April 08, 2010); doi:10.1117/12.847630
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From Conference Volume 7649

  • Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010
  • Peter J. Shull; Aaron A. Diaz; H. Felix Wu
  • San Diego, California, USA | March 07, 2010

abstract

In this paper, a distant acoustic-laser NDE technique is proposed, utilizing a high powered standoff parametric acoustic array (PAA) and laser Doppler vibrometry (LDV), for the detection of debonding and delamination in multi-layer composite systems. Fiber-reinforced polymer wrapped concrete cylinder specimens with artificial defect were manufactured and used in the validation of the technique. Low-frequency (50 Hz 2 kHz) and highfrequency (2 kHz 7 kHz) focused sound waves were generated by PAA, and surface dynamic signatures of the specimens were remotely measured by LDV. From the results it is found that the proposed technique successfully captures the presence of near-surface debonding/delamination.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Tzu-Yang Yu and Robert Haupt
"Damage inspection of fiber reinforced polymer-concrete systems using a distant acoustic-laser NDE technique", Proc. SPIE 7649, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010, 76491J (April 08, 2010); doi:10.1117/12.847630; http://dx.doi.org/10.1117/12.847630


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