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Published December 1, 1991 | Published
Book Section - Chapter Open

Crack-tip deformation field measurements using coherent gradient sensing

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.

Additional Information

© 1991 Society of Photo-Optical Instrumentation Engineers (SPIE).

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