Active control on topological immunity of elastic wave metamaterials

Abstract The topology concept in the condensed physics and acoustics is introduced into the elastic wave metamaterial plate, which can show the topological property of the flexural wave. The elastic wave metamaterial plate consists of the hexagonal array which is connected by the piezoelectric shunt...

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Autores principales:	Guan-Hua Li, Tian-Xue Ma, Yi-Ze Wang, Yue-Sheng Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fe056e44889643308f9fa0a223cc0c7e
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spelling	oai:doaj.org-article:fe056e44889643308f9fa0a223cc0c7e2021-12-02T17:52:42ZActive control on topological immunity of elastic wave metamaterials10.1038/s41598-020-66269-22045-2322https://doaj.org/article/fe056e44889643308f9fa0a223cc0c7e2020-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-66269-2https://doaj.org/toc/2045-2322Abstract The topology concept in the condensed physics and acoustics is introduced into the elastic wave metamaterial plate, which can show the topological property of the flexural wave. The elastic wave metamaterial plate consists of the hexagonal array which is connected by the piezoelectric shunting circuits. The Dirac point is found by adjusting the size of the unit cell and numerical simulations are illustrated to show the topological immunity. Then the closing and breaking of the Dirac point can be generated by the negative capacitance circuits. These investigations denote that the topological immunity can be achieved for flexural wave in mechanical metamaterial plate. The experiments with the active control action are finally carried out to support the numerical design.Guan-Hua LiTian-Xue MaYi-Ze WangYue-Sheng WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Guan-Hua Li Tian-Xue Ma Yi-Ze Wang Yue-Sheng Wang Active control on topological immunity of elastic wave metamaterials
description	Abstract The topology concept in the condensed physics and acoustics is introduced into the elastic wave metamaterial plate, which can show the topological property of the flexural wave. The elastic wave metamaterial plate consists of the hexagonal array which is connected by the piezoelectric shunting circuits. The Dirac point is found by adjusting the size of the unit cell and numerical simulations are illustrated to show the topological immunity. Then the closing and breaking of the Dirac point can be generated by the negative capacitance circuits. These investigations denote that the topological immunity can be achieved for flexural wave in mechanical metamaterial plate. The experiments with the active control action are finally carried out to support the numerical design.
format	article
author	Guan-Hua Li Tian-Xue Ma Yi-Ze Wang Yue-Sheng Wang
author_facet	Guan-Hua Li Tian-Xue Ma Yi-Ze Wang Yue-Sheng Wang
author_sort	Guan-Hua Li
title	Active control on topological immunity of elastic wave metamaterials
title_short	Active control on topological immunity of elastic wave metamaterials
title_full	Active control on topological immunity of elastic wave metamaterials
title_fullStr	Active control on topological immunity of elastic wave metamaterials
title_full_unstemmed	Active control on topological immunity of elastic wave metamaterials
title_sort	active control on topological immunity of elastic wave metamaterials
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/fe056e44889643308f9fa0a223cc0c7e
work_keys_str_mv	AT guanhuali activecontrolontopologicalimmunityofelasticwavemetamaterials AT tianxuema activecontrolontopologicalimmunityofelasticwavemetamaterials AT yizewang activecontrolontopologicalimmunityofelasticwavemetamaterials AT yueshengwang activecontrolontopologicalimmunityofelasticwavemetamaterials
_version_	1718379207141097472

Active control on topological immunity of elastic wave metamaterials

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