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Title: Flaw detection in composites using time-average shearography
Authors: Toh, S.L. 
Shang, H.M. 
Chau, F.S. 
Tay, C.J. 
Keywords: composites
flaw detection
Issue Date: Feb-1991
Citation: Toh, S.L.,Shang, H.M.,Chau, F.S.,Tay, C.J. (1991-02). Flaw detection in composites using time-average shearography. Optics and Laser Technology 23 (1) : 25-30. ScholarBank@NUS Repository.
Abstract: Results on flaw detection of glass fibre reinforced plastic beams using time- average shearography are presented here. Detection and sizing of flaws such as debonds or delaminations are successfully carried out using this technique. For easy detection of flaws, the component has to be excited at the resonance frequencies of the flaws. As the flaw gets smaller, a higher frequency is required. For flaws of the same exterior size, a deeper one will also require a higher frequency. © 1991.
Source Title: Optics and Laser Technology
ISSN: 00303992
Appears in Collections:Staff Publications

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