Details
Originalsprache | Englisch |
---|---|
Aufsatznummer | 101981 |
Fachzeitschrift | Extreme Mechanics Letters |
Jahrgang | 61 |
Frühes Online-Datum | 24 Feb. 2023 |
Publikationsstatus | Veröffentlicht - Juni 2023 |
Abstract
The coupling of momentum to strain in elastic metamaterials, known as the Willis coupling, has been widely studied in recent years for its potential in enabling novel phenomena in wave propagation. More recent work has shown that in piezoelectric composites, the momentum can also be coupled to the electrical stimulus, resulting in a new form of electro-momentum coupling, which offers a new approach to controlling elastic wave phenomena through a non-mechanical stimulus. In this study, we present a topology optimization approach to maximize the electro-momentum coupling in piezoelectric composites, where dynamic homogenization is utilized to obtain the effective mechanical, electrical, and electro-mechanical constitutive relations. We first validate the approach in one-dimension, then demonstrate that the electro-momentum coupling can enable asymmetric wave propagation in two-dimensions, both through mechanical and electrical loadings. This approach can enable the design of piezoelectric composites that support novel wave phenomena that can be excited through non-mechanical means.
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- Chemische Verfahrenstechnik (insg.)
- Bioengineering
- Chemische Verfahrenstechnik (insg.)
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- Ingenieurwesen (insg.)
- Ingenieurwesen (sonstige)
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in: Extreme Mechanics Letters, Jahrgang 61, 101981, 06.2023.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Maximizing electro-momentum coupling in generalized 2D Willis Metamaterials
AU - Huynh, Hai D.
AU - Zhuang, Xiaoying
AU - Park, Harold S.
AU - Nanthakumar, S. S.
AU - Jin, Yabin
AU - Rabczuk, Timon
N1 - Funding Information: The authors gratefully acknowledge the sponsorship from NSFC, China ( 52278411 ) and the Science and Technology Commission of Shanghai Municipality, China ( 22JC1404100 ). Authors also acknowledge the support of the HLRN project and cluster system team at the Leibniz Universität of Hannover, Germany .
PY - 2023/6
Y1 - 2023/6
N2 - The coupling of momentum to strain in elastic metamaterials, known as the Willis coupling, has been widely studied in recent years for its potential in enabling novel phenomena in wave propagation. More recent work has shown that in piezoelectric composites, the momentum can also be coupled to the electrical stimulus, resulting in a new form of electro-momentum coupling, which offers a new approach to controlling elastic wave phenomena through a non-mechanical stimulus. In this study, we present a topology optimization approach to maximize the electro-momentum coupling in piezoelectric composites, where dynamic homogenization is utilized to obtain the effective mechanical, electrical, and electro-mechanical constitutive relations. We first validate the approach in one-dimension, then demonstrate that the electro-momentum coupling can enable asymmetric wave propagation in two-dimensions, both through mechanical and electrical loadings. This approach can enable the design of piezoelectric composites that support novel wave phenomena that can be excited through non-mechanical means.
AB - The coupling of momentum to strain in elastic metamaterials, known as the Willis coupling, has been widely studied in recent years for its potential in enabling novel phenomena in wave propagation. More recent work has shown that in piezoelectric composites, the momentum can also be coupled to the electrical stimulus, resulting in a new form of electro-momentum coupling, which offers a new approach to controlling elastic wave phenomena through a non-mechanical stimulus. In this study, we present a topology optimization approach to maximize the electro-momentum coupling in piezoelectric composites, where dynamic homogenization is utilized to obtain the effective mechanical, electrical, and electro-mechanical constitutive relations. We first validate the approach in one-dimension, then demonstrate that the electro-momentum coupling can enable asymmetric wave propagation in two-dimensions, both through mechanical and electrical loadings. This approach can enable the design of piezoelectric composites that support novel wave phenomena that can be excited through non-mechanical means.
KW - Asymmetric wave propagation
KW - Dynamic homogenization
KW - Elastodynamics
KW - Topology optimization
KW - Willis materials
UR - http://www.scopus.com/inward/record.url?scp=85157969542&partnerID=8YFLogxK
U2 - 10.1016/j.eml.2023.101981
DO - 10.1016/j.eml.2023.101981
M3 - Article
AN - SCOPUS:85157969542
VL - 61
JO - Extreme Mechanics Letters
JF - Extreme Mechanics Letters
M1 - 101981
ER -