Relaxed micromorphic modeling of the interface between a homogeneous solid and a band-gap metamaterial: New perspectives towards metastructural design

Abstract : In the present paper, the material parameters of the isotropic relaxed micromorphic model derived for a specific metamaterial in a previous contribution are used to model its transmission properties. Specifically, the reflection and transmission coefficients at an interface between a homogeneous solid and the chosen metamaterial are analyzed by using both the relaxed micromorphic model and a direct FEM implementation of the detailed microstructure. The obtained results show an excellent agreement between the transmission spectra derived via our enriched continuum model and those issued by the direct FEM simulation. Such excellent agreement validates the indirect measure of the material parameters and opens the way towards an efficient meta-structural design.
Complete list of metadatas

Cited literature [36 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01720689
Contributor : Gabriele Barbagallo <>
Submitted on : Thursday, March 1, 2018 - 2:45:52 PM
Last modification on : Tuesday, June 18, 2019 - 9:33:20 AM
Long-term archiving on : Wednesday, May 30, 2018 - 1:45:49 PM

File

Interface_Reviewd R2.pdf
Files produced by the author(s)

Identifiers

Citation

Angela Madeo, Gabriele Barbagallo, Manuel Collet, Marco Valerio D’agostino, Marco Miniaci, et al.. Relaxed micromorphic modeling of the interface between a homogeneous solid and a band-gap metamaterial: New perspectives towards metastructural design. Mathematics and Mechanics of Solids, SAGE Publications, 2018, 23 (12), pp.1485-1506. ⟨10.1177/1081286517728423⟩. ⟨hal-01720689⟩

Share

Metrics

Record views

272

Files downloads

104