Spatial bandwidth enlargement and field enhancement of shear horizontal waves in finite graded piezoelectric layered media

Yanlong Xu

doi:10.1016/j.physleta.2015.04.005

Spatial bandwidth enlargement and field enhancement of shear horizontal waves in finite graded piezoelectric layered media

Yanlong Xu

Computer, Electrical and Mathematical Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Shear horizontal (SH) wave propagation in finite graded piezoelectric layered media is investigated by transfer matrix method. Different from the previous studies on SH wave propagation in completely periodic layered media, calculations on band structure and transmission in this paper show that the graded layered media possess very large band gaps. Harmonic wave simulation by finite element method (FEM) confirms that the reason of bandwidth enlargement is that waves within the band gap ranges are spatially enhanced and stopped by the corresponding graded units. The study suggests that the graded structure possesses the property of manipulating elastic waves spatially, which shows potential applications in strengthening energy trapping and harvesting. © 2015.

Original language	English (US)
Pages (from-to)	1752-1756
Number of pages	5
Journal	Physics Letters A
Volume	379
Issue number	30-31
DOIs	https://doi.org/10.1016/j.physleta.2015.04.005
State	Published - Sep 2015

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KAUST Repository Item: Exported on 2020-10-01

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10.1016/j.physleta.2015.04.005

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title = "Spatial bandwidth enlargement and field enhancement of shear horizontal waves in finite graded piezoelectric layered media",

abstract = "Shear horizontal (SH) wave propagation in finite graded piezoelectric layered media is investigated by transfer matrix method. Different from the previous studies on SH wave propagation in completely periodic layered media, calculations on band structure and transmission in this paper show that the graded layered media possess very large band gaps. Harmonic wave simulation by finite element method (FEM) confirms that the reason of bandwidth enlargement is that waves within the band gap ranges are spatially enhanced and stopped by the corresponding graded units. The study suggests that the graded structure possesses the property of manipulating elastic waves spatially, which shows potential applications in strengthening energy trapping and harvesting. {\textcopyright} 2015.",

author = "Yanlong Xu",

note = "KAUST Repository Item: Exported on 2020-10-01",

year = "2015",

month = sep,

doi = "10.1016/j.physleta.2015.04.005",

language = "English (US)",

volume = "379",

pages = "1752--1756",

journal = "Physics Letters A",

issn = "0375-9601",

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T1 - Spatial bandwidth enlargement and field enhancement of shear horizontal waves in finite graded piezoelectric layered media

AU - Xu, Yanlong

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2015/9

Y1 - 2015/9

N2 - Shear horizontal (SH) wave propagation in finite graded piezoelectric layered media is investigated by transfer matrix method. Different from the previous studies on SH wave propagation in completely periodic layered media, calculations on band structure and transmission in this paper show that the graded layered media possess very large band gaps. Harmonic wave simulation by finite element method (FEM) confirms that the reason of bandwidth enlargement is that waves within the band gap ranges are spatially enhanced and stopped by the corresponding graded units. The study suggests that the graded structure possesses the property of manipulating elastic waves spatially, which shows potential applications in strengthening energy trapping and harvesting. © 2015.

AB - Shear horizontal (SH) wave propagation in finite graded piezoelectric layered media is investigated by transfer matrix method. Different from the previous studies on SH wave propagation in completely periodic layered media, calculations on band structure and transmission in this paper show that the graded layered media possess very large band gaps. Harmonic wave simulation by finite element method (FEM) confirms that the reason of bandwidth enlargement is that waves within the band gap ranges are spatially enhanced and stopped by the corresponding graded units. The study suggests that the graded structure possesses the property of manipulating elastic waves spatially, which shows potential applications in strengthening energy trapping and harvesting. © 2015.

UR - http://hdl.handle.net/10754/594202

UR - https://linkinghub.elsevier.com/retrieve/pii/S0375960115003321

UR - http://www.scopus.com/inward/record.url?scp=84937757894&partnerID=8YFLogxK

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DO - 10.1016/j.physleta.2015.04.005

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VL - 379

SP - 1752

EP - 1756

JO - Physics Letters A

JF - Physics Letters A

IS - 30-31

ER -

Spatial bandwidth enlargement and field enhancement of shear horizontal waves in finite graded piezoelectric layered media

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