Kanakambaran, Krishnadas V. ; Balasubramanian, Krishnan (2021) Observing dual-mode second-harmonic generation in an isotropic nonlinear elastic plate Ultrasonics, 117 . p. 106525. ISSN 0041-624X
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Official URL: https://doi.org/10.1016/j.ultras.2021.106525
Related URL: http://dx.doi.org/10.1016/j.ultras.2021.106525
Abstract
In this paper, we discuss the observation of simultaneously propagating dual-mode second-harmonic fundamental symmetric (s0) mode and a vertical-shear horizontal (sh0┴) mode generated on an aluminium plate of 1 mm thickness while excited with a fundamental shear horizontal (SH0) mode in a large domain. The experimental observations, and numerical models, were used to confirm the presence of dual-mode second-harmonics. The two wavemodes would separate from each other in the time-domain, wherein the travel length exceeded a minimum cut-off length of 40λ. This approach can provide important implications for more versatile early state defect detection.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 140872 |
| Deposited On: | 24 Nov 2025 05:14 |
| Last Modified: | 24 Nov 2025 05:14 |
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