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

Abstract:

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.

• Periodical: Key Engineering Materials (Volumes 417-418)
• Pages: 253-256
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.417-418.253
• Online since: October 2009
• Authors: Marco Scalerandi, Antonio S. Gliozzi, Paola Antonaci, Caterina L.E. Bruno, Pietro G. Bocca
• Keywords: Material Evaluation, Memory, Nonlinear Elasticity, Ultrasound (US)

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