Experimental Evidence of Correlations Between Conditioning and Relaxation in Hysteretic Elastic Media - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Applied Année : 2019

Experimental Evidence of Correlations Between Conditioning and Relaxation in Hysteretic Elastic Media

(1) , (2, 3) , (2, 4) , (1) , (1) , (1)
1
2
3
4

Résumé

Consolidated granular materials and materials with damage at the microstructural level exhibit anomalous elastic behavior even when excited by low-amplitude elastic waves. Their response is given by a combination of slow- and fast-dynamics effects which, as their definition implies, act on very different time scales. In particular, conditioning (a transition to an elastic state dependent on the strain amplitude) and relaxation (full recovery of the elastic properties when the strain is removed) have been observed in different materials and under different dynamic excitations. An experimental parametric analysis of the phenomenon, aiming to establish correlations between the effects on different elastic physical properties (wave velocity and attenuation coefficient) and between the evolution of conditioning and relaxation is proposed here, with the goal of better characterizing slow dynamics and allowing one to go beyond the phenomenological description of elastic hysteresis currently available. At the same time, by studying different materials, we wish to highlight the possibility of using slow dynamics as an additional tool for materials characterization.
Fichier non déposé

Dates et versions

hal-02519834 , version 1 (26-03-2020)

Identifiants

Citer

M. Scalerandi, C. Mechri, Mourad Bentahar, A. Di Bella, A.S. Gliozzi, et al.. Experimental Evidence of Correlations Between Conditioning and Relaxation in Hysteretic Elastic Media. Physical Review Applied, 2019, 12 (4), ⟨10.1103/PhysRevApplied.12.044002⟩. ⟨hal-02519834⟩
12 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More