Temperature-controlled spatiotemporally modulated phononic crystal for achieving nonreciprocal acoustic wave propagation

被引：3

作者：

Palacios, Justin ^{[1
]}

Calderin, Lazaro ^{[1
]}

Chon, Allan ^{[1
]}

Frankel, Ian ^{[2
]}

Alqasimi, Jihad ^{[3
]}

Allein, Florian ^{[2
]}

Gorelik, Rachel ^{[1
]}

Lata, Trevor ^{[1
]}

Curradi, Richard ^{[1
]}

Lambert-Milak, Gabrielle ^{[1
]}

Oke, Anuja ^{[1
]}

Smith, Neale ^{[1
]}

Abi Ghanem, Maroun ^{[2
]}

Lucas, Pierre ^{[1
]}

Boechler, Nicholas ^{[2
]}

Deymier, Pierre ^{[1
]}

机构：

[1] Univ Arizona, Dept Mat Sci & Engn, Tucson, AZ USA

[2] Univ Calif San Diego, Dept Mech & Aerosp Engn, San Diego, CA 92103 USA

[3] King Fahd Univ Petr & Minerals, Mech Engn Dept, Dhahran, Saudi Arabia

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2022年 / 151卷 / 06期

基金：

美国国家科学基金会;

关键词：

DEPENDENCE; ALUMINUM;

D O I：

10.1121/10.0011543

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

We computationally investigate a method for spatiotemporally modulating a material's elastic properties, leveraging thermal dependence of elastic moduli, with the goal of inducing nonreciprocal propagation of acoustic waves. Acoustic wave propagation in an aluminum thin film subjected to spatiotemporal boundary heating from one side and constant cooling from the other side was simulated via the finite element method. Material property modulation patterns induced by the asymmetric boundary heating are found to be non-homogenous with depth. Despite these inhomogeneities, it will be shown that such thermoelasticity can still be used to achieve nonreciprocal acoustic wave propagation. (C) 2022 Acoustical Society of America.

引用

页码：3669 / 3675

页数：7

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