Hysteretic elasticity in damaged concrete: Quantitative analysis of slow and fast dynamics

M. Bentahar, H. El Aqra, R. El Guerjouma, M. Griffa, and M. Scalerandi

Phys. Rev. B 73, 014116 – Published 27 January 2006

Abstract

Fast and slow dynamics in the elastic response of damaged materials to external excitations show evidence of an anomalous (hysteretic) elastic behavior. Experimental observations may be used to detect and eventually characterize the damaged state of structural components. At the same time, reliable theoretical models might support data interpretation and development of new experiments. Here, we analyze the resonance frequency shift in undamaged and damaged concrete bars, comparing experimental results and theoretical predictions obtained from a Preisach-Mayergoyz based elastic model.

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Received 12 April 2005

DOI:https://doi.org/10.1103/PhysRevB.73.014116

Authors & Affiliations

M. Bentahar¹, H. El Aqra¹, R. El Guerjouma^1,2, M. Griffa^3,4, and M. Scalerandi^3,*

¹GEMPPM UMR CNRS 5510 and INSA de Lyon, 20 Av.A.Einstein-Bât.Blaise Pascal, Villeurbanne, France
²LAUM UMR CNRS 6613 and Universtitè du Maine at le Mans, Av.Olivier Messiaen, Le Mans Cedex 9, France
³CNISM-Dip. Fisica, Politecnico di Torino, C.so Duca degli Abruzzi 24, Torino, Italy
⁴Bioinformatics and HPC Labs, Bioindustry Park of Canavese, V.Ribes 5, Colleretto Giacosa, Italy

^*Author to whom correspondence should be addressed. Email address: marco.scalerandi@infm.polito.it

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Vol. 73, Iss. 1 — 1 January 2006

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Physical Review B

covering condensed matter and materials physics