Diffraction Moire: The Dynamic Regime

V. A. Deason; J. S. Epstein; W. G. Reuter

doi:10.1117/12.939776

10 September 1987 Diffraction Moire: The Dynamic Regime

V. A. Deason, J. S. Epstein, W. G. Reuter

Proceedings Volume 0746, Industrial Laser Interferometry; (1987) https://doi.org/10.1117/12.939776
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

Diffraction moire interferometry has been applied to numerous static and slowly changing stress configurations. This technique has now been extended to the study of dynamic loading events, especially to the interaction of dynamic stress waves with such flaws as cracks or with the variations in composition found in composite materials. A pulsed ruby laser was used to provide the rapid (20 ns wide), brilliant, and coherent illumination required for these studies. The technique and several specific applications are described. Key words: Dynamic strain, dynamic moire', pulsed laser, fracture, composites, ceramics.

Citation Download Citation

V. A. Deason, J. S. Epstein, and W. G. Reuter "Diffraction Moire: The Dynamic Regime", Proc. SPIE 0746, Industrial Laser Interferometry, (10 September 1987); https://doi.org/10.1117/12.939776

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