Reflection and transmission of Lamb waves at an imperfect joint of plates

Mori, Naoki; Biwa, Shiro; Hayashi, Takahiro

Journal of Applied Physics, 2013, 113(7), 074901

Number of Access:447（2025-08-14 00:03 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84962

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Title
Reflection and transmission of Lamb waves at an imperfect joint of plates
Creator
NRID
1000000802092 1000000802092
researchmap permalink
7000020478 7000020478
Scopus Author ID
55614094500 55614094500
ORCID
0000-0002-0707-3443 0000-0002-0707-3443
CreatorName
Mori, Naoki
NRID
1000090273466 1000090273466
CreatorName
Biwa, Shiro
NRID
1000030324479 1000030324479
ORCID
0000-0001-6064-4658 0000-0001-6064-4658
researchmap permalink
takahiro_hayashi takahiro_hayashi
Scopus Author ID
37064150200 37064150200
CreatorName
Hayashi, Takahiro
Description
Naoki Mori, Shiro Biwa, and Takahiro Hayashi, "Reflection and transmission of Lamb waves at an imperfect joint of plates", Journal of Applied Physics 113, 074901 (2013) https://doi.org/10.1063/1.4791711.
Abstract
The reflection and transmission of Lamb waves at an imperfect joint of plates are analyzed numerically by the modal decomposition method and the hybrid finite element method. The joint is modeled as a spring-type interface characterized by distributed normal and tangential stiffnesses. The analysis is focused on a low-frequency range where the lowest-order symmetric and antisymmetric Lamb waves are the only propagating modes. The frequency-dependent reflection and transmission characteristics of these Lamb modes are computed for different interfacial stiffnesses, together with the generation behavior of localized, non-propagating higher-order Lamb modes. As a result, S0-mode Lamb wave is shown to exhibit the reflection and transmission characteristics which are monotonically frequency-dependent. On the other hand, A0-mode Lamb wave shows complicated and non-monotonic frequency dependence in the reflection and transmission characteristics. The obtained Lamb wave characteristics are discussed in the light of approximate one-dimensional models constructed based on classical plate theories. As a result, the reflection and transmission coefficients of S0-mode Lamb wave are accurately reproduced by a simple model of longitudinal wave in thin plates, while those of A0-mode Lamb wave are well described by the Mindlin plate model of flexural wave. It is also shown that stiffness reduction at the corners of the contacting edges of plates has only minor influence on the reflection and transmission characteristics.
Publisher
American Institute of Physics
Source Title
Journal of Applied Physics
Volume (Issue)
113(7)
Page
074901
Date of Issued
2013-02
Language
English
Handle URL
https://hdl.handle.net/11094/84962
PISSN
00218979
eISSN
10897550
NCID
AA00693547
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1063/1.4791711
Access Rights
open access
CopyRight
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Journal of Applied Physics and may be found at https://doi.org/10.1063/1.4791711.
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Category
学術雑誌論文 Journal Article