Archivio Istituzionale della RicercaFast 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 analyse the resonance frequency shift in undamaged and damaged concrete bars, comparing experimental results and theoretical predictions obtained from a Preisach-Mayergoyz based elastic model.
Hysteretic elasticity in damaged concrete: quantitative analysis of slow and fast dynamics / M., Bentahar; H., EL AQRA; R., EL GUERJOUMA; Griffa, Michele; Scalerandi, Marco. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 73:(2006), pp. 014116-1-014116-10. [10.1103/PhysRevB.73.014116]
Hysteretic elasticity in damaged concrete: quantitative analysis of slow and fast dynamics
GRIFFA, Michele;SCALERANDI, MARCO
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 analyse 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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https://hdl.handle.net/11583/1405592
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