Theoretical verification of three-dimensional manufacturable pentamode metamaterial microstructure.
eigenvalue
elastic tensor
mechanical modulus
mechanical/acoustic metamaterial
pentamode
single-mode band gap
Journal
Journal of physics. Condensed matter : an Institute of Physics journal
ISSN: 1361-648X
Titre abrégé: J Phys Condens Matter
Pays: England
ID NLM: 101165248
Informations de publication
Date de publication:
20 Sep 2021
20 Sep 2021
Historique:
received:
10
06
2021
accepted:
07
09
2021
pubmed:
8
9
2021
medline:
8
9
2021
entrez:
7
9
2021
Statut:
epublish
Résumé
A special kind of pentamode metamaterial, which is composed of double-cone elements and forms simple-cubic lattice, is investigated in this paper. Based on finite-element method, the phonon band structure and the transmission spectrum of the pentamode metamaterial are calculated, and then the pentamodal behavior of this structure is theoretically verified from two aspects, i.e. the physical properties and the mathematical definition. Results show that in the phonon band structure, there is a wider single-mode band gap, corresponding to the remarkable loss in the transmission spectrum. The ratio of bulk modulus
Identifiants
pubmed: 34492654
doi: 10.1088/1361-648X/ac244c
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2021 IOP Publishing Ltd.