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Cut-off frequency analysis of SH-like guided waves in the three-dimensional component with variable width
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Hu, Songtao, Li, Zhichao, Yang, Runjie, Wang, Dongmei, Zhai, Guofu and Dixon, Steve M. (2023) Cut-off frequency analysis of SH-like guided waves in the three-dimensional component with variable width. Nondestructive Testing and Evaluation . doi:10.1080/10589759.2023.2299794 ISSN 1058-9759. (In Press)
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WRAP-cut-off-frequency-analysis-SH-like-guided-waves-three-dimensional-component-variable-width-2023.pdf - Accepted Version Embargoed item. Restricted access to Repository staff only until 30 December 2024. Contact author directly, specifying your specific needs. - Requires a PDF viewer. Download (2208Kb) |
Official URL: https://doi.org/10.1080/10589759.2023.2299794
Abstract
The component with variable width (such as railway turnout) is one of the most critical configurations in infrastructure. Guided waves have already been employed for flat plates, however, the influence of cross-section width change for guided waves can’t be ignored. In this study, the theoretical cut-off frequency of shear-horizontal (SH)-like guided waves in rectangular plate was analysed. The dispersion curves of rectangular plate with different widths were calculated by the periodic finite element (FE) method. Theoretical calculations and dispersion curves both show that the cut-off frequency of SH-like guided waves decreases when the width of rectangular plate increases. A periodic-permanent-magnet (PPM) electromagnetic-acoustic-transducer (EMAT) at the excitation frequency of 200 kHz was constructed and used in the experiments to generate SH-like guided waves on rectangular plates with the widths of 12 mm and 20 mm, respectively. Experimental results show that multiple wave modes of SH-like guided waves appear as the width of the rectangular plate increases. When the SH-like guided waves propagates in a rectangular plate with variable width, the high-order modes will be cut-off and reflected as the width decreases.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Science > Physics |
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SWORD Depositor: | Library Publications Router | |||||||||
Library of Congress Subject Headings (LCSH): | Wave mechanics, Wave guides, Ultrasonics | |||||||||
Journal or Publication Title: | Nondestructive Testing and Evaluation | |||||||||
Publisher: | Taylor & Francis Ltd. | |||||||||
ISSN: | 1058-9759 | |||||||||
Official Date: | 30 December 2023 | |||||||||
Dates: |
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DOI: | 10.1080/10589759.2023.2299794 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | In Press | |||||||||
Re-use Statement: | This is an Accepted Manuscript of an article published by Taylor & Francis in Nondestructive Testing and Evaluation on 30 Dec 2023, available at: https://doi.org/10.1080/10589759.2023.2299794 | |||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||
Date of first compliant deposit: | 7 February 2024 | |||||||||
RIOXX Funder/Project Grant: |
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