- Tytuł:
- Effective properties of periodic media in elastodynamic problems
- Autorzy:
-
Yera, Rolando
Méndez, Carlos G.
Sánchez, Pablo J.
Huespe, Alfredo E. - Powiązania:
- https://bibliotekanauki.pl/articles/29520225.pdf
- Data publikacji:
- 2021
- Wydawca:
- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
- Tematy:
-
effective properties
acoustic metamaterials
wave propagation
periodic media
Bloch waves
phononic crystal
metamateriały akustyczne
propagacja fali
media okresowe
fale Blocha
kryształ fononiczny - Opis:
- This paper describes a homogenization model for evaluating the effective elastodynamic properties of acoustic metamaterials in problems involving wave propagation. The methodology is based on determining the constitutive equations in terms of averaged quantities observed at the macroscale. In this sense, the approach very closely follows the pioneering ideas introduced by Willis, and afterwards, followed by several authors in the last ten years. The distinctive characteristic of our approach is that we write the microscale equation in the spatial domain. The model is validated with previous results published in the literature, and our results replicate them almost exactly. The resulting homogenization model could be used as an additional tool for the topology design of acoustic metamaterials.
- Źródło:
-
Computer Methods in Materials Science; 2021, 21, 3; 139-148
2720-4081
2720-3948 - Pojawia się w:
- Computer Methods in Materials Science
- Dostawca treści:
- Biblioteka Nauki
Artykuł