Elastic Conditioning, Memory and Relaxation Induced by the Presence of Cracks in Concrete

The presence of damage or cracks modifies the elastic properties of a sample, introducing nonlinear components in the elastic response to an ultrasonic excitation. Among other effects, we discuss here conditioning and memory, i.e. the transition of the sample to a new (non equilibrium) elastic state...

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Bibliographic Details
Published in:Key engineering materials 2010-01, Vol.417-418, p.253-256
Main Authors: Gliozzi, Antonio S., Bruno, Caterina L.E., Bocca, Pietro G., Antonaci, Paola, Scalerandi, Marco
Format: Article
Language:English
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Summary:The presence of damage or cracks modifies the elastic properties of a sample, introducing nonlinear components in the elastic response to an ultrasonic excitation. Among other effects, we discuss here conditioning and memory, i.e. the transition of the sample to a new (non equilibrium) elastic state when perturbed by a strain, even at a relatively low amplitude. A quantification of these phenomena can be the basis for a novel Nondestructive Method to evaluate the integrity of a structural or mechanical component.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.417-418.253