学術雑誌論文

学術雑誌論文

text

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

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

Elsevier Ltd

英語

text

2014-01

https://doi.org/10.1016/j.ultras.2014.04.021

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.

© 2014 Elsevier B.V. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

84498

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

Elsevier Ltd

英語

2014-01

Ultrasonics

54

6

1460

1469

https://doi.org/10.1016/j.ultras.2014.04.021

https://hdl.handle.net/11094/84498