Reflection and transmission characteristics of Lamb waves at an adhesive lap joint of plates

Mori, Naoki; Kusaka, Takayuki

Journal of the Acoustical Society of America, 2019, 145(5), 3075-3085

Number of Access:292（2025-08-14 18:27 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89682

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Title
Reflection and transmission characteristics of Lamb waves at an adhesive lap 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
1000010309099 1000010309099
CreatorName
Kusaka, Takayuki
Description
Naoki Mori and Takayuki Kusaka, "Reflection and transmission characteristics of Lamb waves at an adhesive lap joint of plates", The Journal of the Acoustical Society of America 145, 3075-3085 (2019) https://doi.org/10.1121/1.5109098
Abstract
The reflection and transmission characteristics of Lamb waves at an adhesive single lap joint of plates are examined theoretically by the hybrid finite element method. The adhesive joint is modeled by a linear spring-type interface, which is characterized by normal and tangential stiffnesses. For the incidence of the lowest-order antisymmetric (A0) Lamb mode in a low frequency range, it is shown that the reflection and transmission coefficients of the A0 mode take local maxima and minima at multiple frequencies. This behavior results from the interference of waves originating from the lowest-order antisymmetric guided wave mode in the overlap region. The peak frequencies of the transmission coefficient increase monotonically with increasing tangential stiffness, but are almost invariant with the normal stiffness of the adhesive joint. Furthermore, time-domain numerical simulation using the finite element method is carried out to discuss the theoretical results. As a result, for the A0 mode incidence, the reflection and transmission waveforms of the A0 mode from the lap joint are found to show long-oscillation tails. The spectral analysis for the obtained waveforms shows that these tails are necessary to identify the frequencies at which the reflection and transmission coefficients take local maxima and minima.
Publisher
Acoustical Society of Americapublish
Source Title
Journal of the Acoustical Society of America
Volume (Issue)
145(5)
Page
3075-3085
Date of Issued
2019-05-28
Language
English
Handle URL
https://hdl.handle.net/11094/89682
PISSN
00014966
eISSN
15208524
NCID
AA00253792
AA12442216
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1121/1.5109098
Access Rights
open access
CopyRight
Copyright 2019 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.
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Version of Record
Category
学術雑誌論文 Journal Article