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Proceedings Paper

Application of speckle shearing interferometry to the evaluation of creep strain in elastomers
Author(s): Juan Benito Pascual-Francisco; Alexandre Michtchenko; Orlando Susarrey-Huerta; Omar Barragán-Pérez; Antonio de Jesús Ortiz-Gonzáles
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Paper Abstract

In this paper, authors present a new application of speckle shearing interferometry (shearography) to a phenomenon known as creep compliance, which is an important mechanical property of viscoelastic materials. Two different sealing elastomers were tested in a short-term creep experiment, applying a constant tensile stress to a specimen. An experimental in-plane shearography setup was implemented to measure directly the in-plane creep strains produced in the tested object. In order to show the effectiveness of shearography for the assessment of this mechanical property, results were compared to that obtained with an equipment of Digital Image Correlation (DIC). It was demonstrated that shearography can be potentially and successfully applied to the creep analysis of these kind of materials. Finally, advantages and limitations of this measurement method are discussed.

Paper Details

Date Published: 16 October 2017
PDF: 9 pages
Proc. SPIE 10448, Optifab 2017, 104481Q (16 October 2017); doi: 10.1117/12.2277427
Show Author Affiliations
Juan Benito Pascual-Francisco, Instituto Politécnico Nacional (Mexico)
Alexandre Michtchenko, Instituto Politécnico Nacional (Mexico)
Orlando Susarrey-Huerta, Instituto Politécnico Nacional (Mexico)
Omar Barragán-Pérez, Instituto Politécnico Nacional (Mexico)
Antonio de Jesús Ortiz-Gonzáles , Instituto Tecnológico de Los Mochis (Mexico)

Published in SPIE Proceedings Vol. 10448:
Optifab 2017
Julie L. Bentley; Sebastian Stoebenau, Editor(s)

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