Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/40844
Title: Uncertainty evaluation of strain and strain rate measurements by ESPI during a tensile test
Authors: Guelorget, B
Francois, M
Montay, G
Daniel, L
Lu, J
Keywords: Fringe analysis
Interferometry
Speckle pattern
Issue Date: 2006
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2006, v. 6341, 63412K How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: Localization of plastic strain has been studied by measuring strain and strain rate during tensile test1. Pictures were continuously recorded during the experiment and in-plane Electronic Speckle Pattern Interferometry (ESPI) pictures were generated afterwards, by subtracting couples of images. A square grid of 3 mm separation was drawn on the specimen to determine the true stress-true strain curve, while fringe patterns gave an access to relative displacements. Strain, average strain and strain rate were deduced. An uncertainty evaluation on these parameters was carried out applying the so-called law of propagation of uncertainties (ISO 07-0202).
Description: Speckle06: Speckles, From Grains to Flowers, Nimes, France, September 2006
URI: http://hdl.handle.net/10397/40844
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.695840
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