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Proceedings Paper

Crack-tip deformation field measurements using coherent gradient sensing
Author(s): Hareesh V. Tippur; Sridhar Krishnaswamy; Ares J. Rosakis
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Paper Abstract

A real time, full field, lateral shearing interferometry - coherent gradient sensing (CGS) - has recently been developed for investigating fracture in transparent and opaque solids. The resulting interference patterns are related to the mechanical fields by means of a first order diffraction analysis. The method has been successfully applied to quasi-static and dynamic crack tip deformation field mapping in homogeneous and bimaterial fracture specimens.

Paper Details

Date Published: 1 December 1991
Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.49513
Show Author Affiliations
Hareesh V. Tippur, Auburn Univ. (United States)
Sridhar Krishnaswamy, Northwestern Univ. (United States)
Ares J. Rosakis, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 1554:
Second International Conference on Photomechanics and Speckle Metrology
Fu-Pen Chiang; Fu-Pen Chiang, Editor(s)

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