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An unsplit-field viscoelastic complex-frequency-shifted perfectly matched layer for analysis of transient waves in heterogeneous media based on an efficient voxel element method
https://hiroshima.repo.nii.ac.jp/records/2008831
https://hiroshima.repo.nii.ac.jp/records/20088316873b408-a06e-4b62-9694-8392d15902d0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SDEE_177_108404.pdf (4.5 MB)
Download is available from 2025/12/23.
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2025-01-10 | |||||||||||
| タイトル | ||||||||||||
| タイトル | An unsplit-field viscoelastic complex-frequency-shifted perfectly matched layer for analysis of transient waves in heterogeneous media based on an efficient voxel element method | |||||||||||
| 言語 | en | |||||||||||
| 作成者 |
Naeini, Ehsan Fakharzadeh
× Naeini, Ehsan Fakharzadeh
× Khaji, Naser
× Hori, Muneo
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| アクセス権 | ||||||||||||
| アクセス権 | embargoed access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_f1cf | |||||||||||
| 権利情報 | ||||||||||||
| 言語 | en | |||||||||||
| 権利情報 | © 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||||||||
| 権利情報 | ||||||||||||
| 言語 | en | |||||||||||
| 権利情報 | This is not the published version. Please cite only the published version. | |||||||||||
| 権利情報 | ||||||||||||
| 言語 | ja | |||||||||||
| 権利情報 | この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。 | |||||||||||
| 主題 | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Rayleigh damping | |||||||||||
| 主題 | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Voxel element method | |||||||||||
| 主題 | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Perfectly matched layer | |||||||||||
| 主題 | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Transient wave propagation | |||||||||||
| 主題 | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Viscoelastic | |||||||||||
| 主題 | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Unsplit-field viscoelastic CFS-PML | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述 | Wave propagation analysis of heterogeneous unbounded media employing domain discretization methods necessitates truncation of the finite computational domain at its truncation boundaries. The Perfectly Matched Layer (PML) is a robust absorbing boundary condition, which is extensively employed to favorably absorb outgoing scattered waves from the interior computational domain, regardless of frequencies and directions of outgoing waves. Nonetheless, most available PMLs are developed for elastic domains, while their developments in domain discretization methods, which consider damping using the Rayleigh damping formulation, are insufficient. In this study, a viscoelastic PML formulation is developed that accommodates the Rayleigh-type damping. The PMLs are basically developed from a coordinate transformation concept using a complex stretching function. Suitable stretching functions can efficiently control the absorptive properties and the spectral character of the PML. Besides, the stretching functions play a crucial role in the long-time stability of transient wave simulations. The standard stretching function usually results in spurious reflections, especially when propagating waves incident to the truncation boundary at near-grazing incidence. On the other hand, the complex-frequency-shifted (CFS) stretching function has been shown to mitigate long-time instability. Therefore, the proposed viscoelastic PML in the time-domain and frequency-domain are derived using the CFS stretching function for the first time. Comprehensive formulations of the proposed viscoelastic CFS-PML are given, where the displacement field is represented as the sole unknown variable of the problem. Hence, the proposed CFS-PML can be incorporated into any domain discretization method. However, the proposed CFS-PML is further developed in the context of the voxel element method, where element-by-element iterative strategies are implemented to solve the governing equations without storing global matrices in the computer memory. Comprehensive numerical experiments are conducted to demonstrate the validity and efficiency of the proposed viscoelastic CFS-PML formulation in analyzing soil profiles with various damping ratios and properties. Moreover, long-time stability for problems involving waveguides and near-grazing wave incidence is studied, where no instabilities are detected. | |||||||||||
| 言語 | en | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | Elsevier | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | AM | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||
| 関連情報 | ||||||||||||
| 関連タイプ | isVersionOf | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | https://doi.org/10.1016/j.soildyn.2023.108404 | |||||||||||
| 開始ページ | ||||||||||||
| 開始ページ | 108404 | |||||||||||
| 書誌情報 |
en : Soil Dynamics and Earthquake Engineering 巻 177, p. 108404, 発行日 2023-12-23 |
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| 旧ID | 56105 | |||||||||||
| 備考 | The full-text file will be made open to the public on 23 December 2025 in accordance with publisher's 'Terms and Conditions for Self-Archiving' | |||||||||||
