Evaluation of a new electrical resistance shear-strain gauge using moire interferometry

Peter G. Ifju

doi:10.1117/12.57426

1 December 1991 Evaluation of a new electrical resistance shear-strain gauge using moiré interferometry

Peter G. Ifju

Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991) https://doi.org/10.1117/12.57426
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Moiré interferometry was used as an independent means to measure the average shear strain recorded by a specialized "shear gage". The shear gage was developed to record the shear stiffness of unidirectional, multidirectional, woven and chopped fiber composite materials. A moiré grating was replicated directly on top of the gage on the Iosipescu and compact double notched specimens. Fringe patterns revealed the deformations of the gage and the shear strain distributions were extracted and averaged.

Citation Download Citation

Peter G. Ifju "Evaluation of a new electrical resistance shear-strain gauge using moiré interferometry", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); https://doi.org/10.1117/12.57426

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