Abstract
ABSTRACT For non destructive stress evaluation in prestressed concrete, we describe in this paper a promising ultrasonic method. In “ordinary” isotropic homogeneous materials such as steel, ultrasonic determination of third order elastic constants provides means for stress evaluation since half a century. In case of concrete, example of a class of materials that exhibit strong multiple scattering as well as significant elastic nonlinear response, accurate velocity monitoring is challenging. In this paper, we purpose a novel method originally from geophysics. So called “coda wave interferometry” (CWI), this technique is transposed to concrete. We show that intense scattering can be applied to robustly determine velocity changes and so, nonlinear elastic constants. In addition, we show how this method could be transposed in case of in situ measurements in concrete structures and outline future possible applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: European Journal of Environmental and Civil Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
