| Title: | Computation of Dispersion Curves of Rayleigh-Lamb Waves by Newton-Raphson Method |
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| Authors: | ID Pušenjak, Rudi (Author) |
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| Files: |  Computation_of_dispersion_curves-Pusenjak-2023.pdf (863,82 KB)
MD5: 1DE5EE5F7252219E3AE7862674C99A7E
 https://journals.um.si/index.php/anali-pazu/article/view/2914
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UZUM - University of Maribor Press
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| Abstract: | The paper treats the numerical construction of dispersion curves which belong to the propagation of Rayleigh-Lamb waves in isotropic elastic media. The Newton-Raphson method.is applied for computation of real, imaginary and complex wavenumbers in dependence on the frequency of the wave. Due to multivaluedness, unexpected jumps between modes of dispersion curves occur in branch tracing, which prevents successful direct application of the method. This shortcoming is eliminated in the article by introducing the arc-length continuation method. The efficiency of this supplement to the Newton-Raphson method is shown on the example of an aluminum plate with constructions of dispersion curves for real, imaginary and complex wave numbers. |
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| Keywords: | symmetric wave modes, asymmetric wave modes, Helmholtz decoupling, homotopy, arc-length continuation |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 03.08.2022 |
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| Publication date: | 09.06.2023 |
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| Place of publishing: | Maribor |
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| Publisher: | Univerza v Mariboru, Univerzitetna založba |
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| Year of publishing: | 2023 |
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| Number of pages: | 18 |
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| Numbering: | Letn.13, št.1 |
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| PID: | 20.500.12556/DKUM-97259  |
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| UDC: | 53 |
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| ISSN on article: | 2820-364X |
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| COBISS.SI-ID: | 158275587 |
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| DOI: | 10.18690/analipazu.13.1.15-32.2023 |
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| Publication date in DKUM: | 25.02.2026 |
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| Views: | 144 |
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| Downloads: | 4 |
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| Metadata: |    |
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| Categories: | Misc.
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