Electroelastic guided wave dispersion in piezoelectric plates: spectral methods and laser-ultrasound experiments
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866916796463841280 |
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| author | Kiefer, Daniel A. Watzl, Georg Burgholzer, Katharina Ryzy, Martin Grünsteidl, Clemens |
| author_facet | Kiefer, Daniel A. Watzl, Georg Burgholzer, Katharina Ryzy, Martin Grünsteidl, Clemens |
| contents | Electroelastic waves in piezoelectric media are widely used in sensing and filtering applications. Despite extensive research, computing the guided wave dispersion remains challenging. This paper presents semi-analytical approaches based on spectral methods to efficiently and reliably compute dispersion curves. We systematically assess the impact of electrical boundary conditions on a 128° Y-cut LiNbO3 wafer, examining open-open, open-shorted and shorted-shorted surfaces configurations. Multi-modal dispersion maps obtained from laser-ultrasonic experiments for each boundary condition exhibit excellent agreement with the computational predictions. A straightforward implementation of the spectral collocation method is made available as "GEW piezo plate" (https://doi.org/10.5281/zenodo.14205789), while the spectral element method will be integrated to "GEWtool" (http://doi.org/10.5281/zenodo.10114243). Therewith, we aim to make advanced semi-analytical techniques more accessible to physicists and engineers relying on dispersion analysis. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_07389 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Electroelastic guided wave dispersion in piezoelectric plates: spectral methods and laser-ultrasound experiments Kiefer, Daniel A. Watzl, Georg Burgholzer, Katharina Ryzy, Martin Grünsteidl, Clemens Applied Physics Computational Physics 74J05 Electroelastic waves in piezoelectric media are widely used in sensing and filtering applications. Despite extensive research, computing the guided wave dispersion remains challenging. This paper presents semi-analytical approaches based on spectral methods to efficiently and reliably compute dispersion curves. We systematically assess the impact of electrical boundary conditions on a 128° Y-cut LiNbO3 wafer, examining open-open, open-shorted and shorted-shorted surfaces configurations. Multi-modal dispersion maps obtained from laser-ultrasonic experiments for each boundary condition exhibit excellent agreement with the computational predictions. A straightforward implementation of the spectral collocation method is made available as "GEW piezo plate" (https://doi.org/10.5281/zenodo.14205789), while the spectral element method will be integrated to "GEWtool" (http://doi.org/10.5281/zenodo.10114243). Therewith, we aim to make advanced semi-analytical techniques more accessible to physicists and engineers relying on dispersion analysis. |
| title | Electroelastic guided wave dispersion in piezoelectric plates: spectral methods and laser-ultrasound experiments |
| topic | Applied Physics Computational Physics 74J05 |
| url | https://arxiv.org/abs/2412.07389 |