Crack-tip deformation field measurements using coherent gradient sensing

Hareesh V. Tippur; Sridhar Krishnaswamy; Ares J. Rosakis

doi:10.1117/12.49513

1 December 1991 Crack-tip deformation field measurements using coherent gradient sensing

Hareesh V. Tippur, Sridhar Krishnaswamy, Ares J. Rosakis

Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991) https://doi.org/10.1117/12.49513
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download Citation

Hareesh V. Tippur, Sridhar Krishnaswamy, and Ares J. Rosakis "Crack-tip deformation field measurements using coherent gradient sensing", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); https://doi.org/10.1117/12.49513

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