A first order asymptotic homogenization technique is herein proposed for the investigation of wave propagation inside periodic microstructured viscoelastic metamaterials with local resonators. Specifically, in order to characterize the frequency band structure of the periodic metamaterials, an eigenvalue problem in terms of frequency-dependent transfer matrix arises. With the aim of designing high-performance waveguides, a parametric optimization scheme is exploited in order to determine optimal mechanical parameters characterizing a band structure with low-frequency band gaps.

Frequency band structure of hierarchical viscoelastic metamaterials

Fantoni F.;Bacigalupo A.;Gnecco G.
2020

Abstract

A first order asymptotic homogenization technique is herein proposed for the investigation of wave propagation inside periodic microstructured viscoelastic metamaterials with local resonators. Specifically, in order to characterize the frequency band structure of the periodic metamaterials, an eigenvalue problem in terms of frequency-dependent transfer matrix arises. With the aim of designing high-performance waveguides, a parametric optimization scheme is exploited in order to determine optimal mechanical parameters characterizing a band structure with low-frequency band gaps.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11771/17231
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
social impact