Share Email Print
cover

Proceedings Paper

Grating shearography
Author(s): Jacek Bulhak; Yves Surrel
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

This paper describes grating shearography as a technique for direct measurement of in-plane strains and out-of-plane slopes. This technique has many interesting features for mechanical engineering: strains are measured without numerical differentiation, so a good spatial resolution can be obtained; it is also fairly insensitive to vibrations; full in-plane and out-of-plane information can be gathered simultaneously; finally, it is easy to switch from grating shearography to grating interferometry, in order to have also the displacement field. We present the theoretical basis of the method and the preliminary measurements on a graphite/epoxy composite sample under Iosipescu shear testing. Results are compared with FEM simulation.

Paper Details

Date Published: 13 August 1999
PDF: 10 pages
Proc. SPIE 3744, Interferometry '99: Techniques and Technologies, (13 August 1999); doi: 10.1117/12.357753
Show Author Affiliations
Jacek Bulhak, Ecole des Mines de Saint-Etienne (France)
Yves Surrel, National Institute of Metrology (France)


Published in SPIE Proceedings Vol. 3744:
Interferometry '99: Techniques and Technologies
Malgorzata Kujawinska; Mitsuo Takeda, Editor(s)

© SPIE. Terms of Use
Back to Top