Calculation of leaky Lamb waves with a semi-analytical finite element method

Hayashi, Takahiro; Inoue, Daisuke

Ultrasonics, 2014, 54(6), 1460-1469

Number of Access:420（2025-07-31 22:33 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84498

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Title
Calculation of leaky Lamb waves with a semi-analytical finite element method
Creator
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
NRID
1000070448091 1000070448091
ORCID
0000-0002-9216-8198 0000-0002-9216-8198
researchmap permalink
DaisukeINOUE DaisukeINOUE
Scopus Author ID
55723196300 55723196300
CreatorName
Inoue, Daisuke
Subject
Leaky Lamb waves
Semi-analytical finite element method
Non-destructive evaluation
Abstract
A semi-analytical finite element method (SAFE) has been widely used for calculating dispersion curves and mode shapes of guided waves as well as transient waves in a bar like structures. Although guided wave inspection is often conducted for water-loaded plates and pipes, most of the SAFE techniques have not been extended to a plate with leaky media. This study describes leaky Lamb wave calculation with the SAFE. We formulated a new solution using a feature that a single Lamb wave mode generates a harmonic plane wave in leaky media. Dispersion curves obtained with the SAFE agreed well with the previous theoretical studies, which represents that the SAFE calculation was conducted with sufficient accuracy. Moreover, we discussed dispersion curves, attenuation curves, and displacement distributions for total transmission modes and leaky plate modes in a single side and both two side water-loaded plate.
Publisher
Elsevier Ltd
Source Title
Ultrasonics
Volume (Issue)
54(6)
Page
1460-1469
Date of Issued
2014-01
Language
English
Handle URL
https://hdl.handle.net/11094/84498
PISSN
0041624X
NCID
AA00876332
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1016/j.ultras.2014.04.021
Access Rights
open access
CopyRight
© 2014 Elsevier B.V. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article