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The transmission properties of elastic waves through multilayers of spheres with planar defects
Zhao Q; Wei PJ(魏培君); Tang QH(汤奇恒); Wei, PJ (reprint author), Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China.
Source PublicationACTA MECHANICA
2016-02
Volume227Issue:2Pages:321-331
ISSN0001-5970
AbstractThe work presented in this paper discusses the transmission properties of elastic waves through multilayers of spheres which are periodically arranged in a homogeneous host material. The multilayers of spheres can have different kinds of planar defects. These defects are formed by removing one layer of spheres or by changing the radiuses or the material of scatterers in some layers. First, the reflection and transmission matrices of a single layer of spheres are obtained by the multiple scattering approaches and then the reflection and transmission matrices of multilayers of spheres are derived based on the polymerization method. Numerical examples are presented for 15 layers of spheres with one central planar defect layer or two symmetrically arranged planar defect layers. The influences of these planar defects on the frequency-dependent transmission curves are discussed. It is observed that the band gap can be widened evidently by introducing the planar defect, and the defect states appear in the band gap consequently. So the elaborately arranged planar defects are important in designing specific acoustic filters.
DOI10.1007/s00707-015-1392-5
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000369993700003
WOS KeywordSINGLE-PARTICLE TRACKING ; MEAN-SQUARE DISPLACEMENT ; ANOMALOUS DIFFUSION ; BROWNIAN DIFFUSION ; COMPLEX FLUIDS ; MOTION ; SUSPENSIONS ; SPHERES
WOS Research AreaMechanics
WOS SubjectMechanics
Funding OrganizationThe work is supported by the National Natural Science Foundation of China (No. 10972029) and Opening Fund of State Key Laboratory of Nonlinear Mechanics (LNM).
DepartmentLNM固体物理力学
Classification二类
RankingTrue
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58673
Collection非线性力学国家重点实验室
Corresponding AuthorWei, PJ (reprint author), Univ Sci & Technol Beijing, Dept Appl Mech, Beijing 100083, Peoples R China.
Recommended Citation
GB/T 7714
Zhao Q,Wei PJ,Tang QH,et al. The transmission properties of elastic waves through multilayers of spheres with planar defects[J]. ACTA MECHANICA,2016,227(2):321-331.
APA Zhao Q,魏培君,汤奇恒,&Wei, PJ .(2016).The transmission properties of elastic waves through multilayers of spheres with planar defects.ACTA MECHANICA,227(2),321-331.
MLA Zhao Q,et al."The transmission properties of elastic waves through multilayers of spheres with planar defects".ACTA MECHANICA 227.2(2016):321-331.
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