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11 September 2012 Investigation of crack initiation with a three color digital holographic interferometer
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Proceedings Volume 8413, Speckle 2012: V International Conference on Speckle Metrology; 841311 (2012) https://doi.org/10.1117/12.976047
Event: SPECKLE 2012: V International Conference on Speckle Metrology, 2012, Vigo, Spain
Abstract
This paper proposes a three-color holographic interferometer devoted to the deformation analysis of a composite material submitted to a short beam shear test. The simultaneous recording of three laser wavelengths using a triple CCD sensor results in the evaluation of shear strains at the lateral surface of the sample. Such an evaluation provides a pertinent parameter to detect premature crack in the structure, long before it becomes visible on the real time stress/strain curve, or with a classical microscope.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mayssa Karray, Christophe Poilane, Denis Mounier, Mohamed Gargoury, and Pascal Picart "Investigation of crack initiation with a three color digital holographic interferometer", Proc. SPIE 8413, Speckle 2012: V International Conference on Speckle Metrology, 841311 (11 September 2012); https://doi.org/10.1117/12.976047
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