Seismic Metashielding by a Line of Resonators Over a Granular Layer - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Applied Année : 2021

Seismic Metashielding by a Line of Resonators Over a Granular Layer

Résumé

Seismic metamaterials have been the subject of much recent interest, with notable conceptual advances and the demonstration of possible full-scale effectiveness in earthquake protection. Here, through a fine analysis of the dispersion properties and behavior of resonators introduced in a laboratory scale setup, we propose a strategy for the design of an efficient metaseismic barrier. When positioned onto an unconsolidated granular layer, rigid masses of nontrivial shape become elastic resonators by coupling with the relatively soft propagation medium. Additionally, they affect the mechanical boundary conditions and subsurface medium properties through the added weight. We demonstrate that all these ingredients can be rationally combined to improve the shielding effect and control the seismic waves.
Fichier principal
Vignette du fichier
tex00005004.pdf (6.37 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03382305 , version 1 (18-10-2021)

Identifiants

Citer

Pierric Mora, Mathieu Chekroun, Vincent Tournat. Seismic Metashielding by a Line of Resonators Over a Granular Layer. Physical Review Applied, 2021, 16 (4), 9 p. ⟨10.1103/physrevapplied.16.044002⟩. ⟨hal-03382305⟩
28 Consultations
38 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More