Self-controlled wave propagation in hyperelastic media

Abstract We demonstrate theoretically that an ultrasonic wave propagating in a hyperelastic medium can self-control its phase velocities. This phenomenon occurs because the propagation of the ultrasonic wave generates acoustic radiation stresses in the medium, which can induce large deformation of t...

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Autores principales:	Fengxian Xin, Tian Jian Lu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9df1849998d64d5c8f1b7e8a54ff4b70
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spelling	oai:doaj.org-article:9df1849998d64d5c8f1b7e8a54ff4b702021-12-02T11:52:22ZSelf-controlled wave propagation in hyperelastic media10.1038/s41598-017-08098-42045-2322https://doaj.org/article/9df1849998d64d5c8f1b7e8a54ff4b702017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08098-4https://doaj.org/toc/2045-2322Abstract We demonstrate theoretically that an ultrasonic wave propagating in a hyperelastic medium can self-control its phase velocities. This phenomenon occurs because the propagation of the ultrasonic wave generates acoustic radiation stresses in the medium, which can induce large deformation of the medium with significant stiffening effect. In turn, such deformation reshapes the wave propagation while the deformation stiffening changes significantly the phase velocities of the wave till the acoustic radiation stresses are balanced by elastic stresses in the current configuration of the hyperelastic medium. As a result of deformation stiffening, an initially isotropic medium becomes anisotropic, thus enabling self-control or self-bending of the wave propagation. We further reveal that, due to snap-through instability of acoustomechanical deformation in the hyperelastic medium, the ultrasonic wave can discontinuously switch its phase velocities from one state to another by jumping over a large unstable regime. This self-control and switchable mechanism of ultrasonic wave propagation in homogenous hyperelastic media offers innovative design opportunities for phononic, thermal and acoustic materials and devices.Fengxian XinTian Jian LuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fengxian Xin Tian Jian Lu Self-controlled wave propagation in hyperelastic media
description	Abstract We demonstrate theoretically that an ultrasonic wave propagating in a hyperelastic medium can self-control its phase velocities. This phenomenon occurs because the propagation of the ultrasonic wave generates acoustic radiation stresses in the medium, which can induce large deformation of the medium with significant stiffening effect. In turn, such deformation reshapes the wave propagation while the deformation stiffening changes significantly the phase velocities of the wave till the acoustic radiation stresses are balanced by elastic stresses in the current configuration of the hyperelastic medium. As a result of deformation stiffening, an initially isotropic medium becomes anisotropic, thus enabling self-control or self-bending of the wave propagation. We further reveal that, due to snap-through instability of acoustomechanical deformation in the hyperelastic medium, the ultrasonic wave can discontinuously switch its phase velocities from one state to another by jumping over a large unstable regime. This self-control and switchable mechanism of ultrasonic wave propagation in homogenous hyperelastic media offers innovative design opportunities for phononic, thermal and acoustic materials and devices.
format	article
author	Fengxian Xin Tian Jian Lu
author_facet	Fengxian Xin Tian Jian Lu
author_sort	Fengxian Xin
title	Self-controlled wave propagation in hyperelastic media
title_short	Self-controlled wave propagation in hyperelastic media
title_full	Self-controlled wave propagation in hyperelastic media
title_fullStr	Self-controlled wave propagation in hyperelastic media
title_full_unstemmed	Self-controlled wave propagation in hyperelastic media
title_sort	self-controlled wave propagation in hyperelastic media
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9df1849998d64d5c8f1b7e8a54ff4b70
work_keys_str_mv	AT fengxianxin selfcontrolledwavepropagationinhyperelasticmedia AT tianjianlu selfcontrolledwavepropagationinhyperelasticmedia
_version_	1718395060154793984

Self-controlled wave propagation in hyperelastic media

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