Study of concrete's behavior under 4-point bending load using Coda Wave Interferometry CWI analysis

Yuxiang Zhang Odile Abraham Xavier Chapeleau Louis-Marie Cottineau Vincent Tournat Alain Le Duff 1, 2 Bertrand Lascoup Olivier Durand
1 GSII - ESEO-GSII
ESEO-Tech
2 LAUM - Laboratoire d'Acoustique de l'Université du Mans
Abstract : Coda Wave Interferometry (CWI) is an ultrasonic NDT method suitable for complex material such as concrete that can precisely measure small propagation velocity variation (10â??2%). By measuring variation of propagation velocity in concrete caused by acoustoelasticity phenomena, CWI analysis can be used to monitor concrete's internal stress level. For the first time, CWI is used to measure propagation velocity variations due to a stress field in a concrete beam under four-points bending test, which contains simultaneously compressive and tensile stress. Embedded optical-fiber sensors, strain gauges are used in the experiment, in order to confirm and validate the CWI analysis result. Thermocouples are also embedded into concrete beams for monitoring internal temperature fluctuations.
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Communication dans un congrès
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https://hal.archives-ouvertes.fr/hal-01174460
Contributeur : Nathalie Renois <>
Soumis le : jeudi 9 juillet 2015 - 11:16:25
Dernière modification le : vendredi 6 décembre 2019 - 10:28:04

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  • HAL Id : hal-01174460, version 1

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CNRS | UNIV-LEMANS | ESEO-GSII | ESEO-TECH | LAUM

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Yuxiang Zhang, Odile Abraham, Xavier Chapeleau, Louis-Marie Cottineau, Vincent Tournat, et al.. Study of concrete's behavior under 4-point bending load using Coda Wave Interferometry CWI analysis. AIP Conference Proceedings, 2013, Denver, Colorado, United States. pp.398-404. ⟨hal-01174460⟩

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