This paper presents an efficient hybrid asynchronous three-dimensional (3D) perfectly matched layer (PML) for modeling unbounded domains. The proposed unsplit explicit or implicit 3D PML formulation is implemented in the framework of a heterogeneous asynchronous time integrator. It is fully versatile in terms of time integrators and time step sizes according to partitions while conserving classical finite element formulations in the elastic domain without complex-valued stretched coordinates. Examples of a semi-infinite bar, Lamb’s test, and a soil–structure interaction problem with PML-truncated semi-infinite heterogeneous media are investigated to illustrate the efficiency of the proposed PML in terms of accuracy and CPU time.
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Sijia Li 1, 2 ; Michael Brun 3 ; Irini Djeran-Maigre 2 ; Sergey Kuznetsov 4
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@article{CRMECA_2020__348_12_1003_0,
author = {Sijia Li and Michael Brun and Irini Djeran-Maigre and Sergey Kuznetsov},
title = {Three-dimensional hybrid asynchronous perfectly matched layer for wave propagation in heterogeneous semi-infinite media},
journal = {Comptes Rendus. M\'ecanique},
pages = {1003--1030},
publisher = {Acad\'emie des sciences, Paris},
volume = {348},
number = {12},
year = {2020},
doi = {10.5802/crmeca.59},
language = {en},
}
TY - JOUR AU - Sijia Li AU - Michael Brun AU - Irini Djeran-Maigre AU - Sergey Kuznetsov TI - Three-dimensional hybrid asynchronous perfectly matched layer for wave propagation in heterogeneous semi-infinite media JO - Comptes Rendus. Mécanique PY - 2020 SP - 1003 EP - 1030 VL - 348 IS - 12 PB - Académie des sciences, Paris DO - 10.5802/crmeca.59 LA - en ID - CRMECA_2020__348_12_1003_0 ER -
%0 Journal Article %A Sijia Li %A Michael Brun %A Irini Djeran-Maigre %A Sergey Kuznetsov %T Three-dimensional hybrid asynchronous perfectly matched layer for wave propagation in heterogeneous semi-infinite media %J Comptes Rendus. Mécanique %D 2020 %P 1003-1030 %V 348 %N 12 %I Académie des sciences, Paris %R 10.5802/crmeca.59 %G en %F CRMECA_2020__348_12_1003_0
Sijia Li; Michael Brun; Irini Djeran-Maigre; Sergey Kuznetsov. Three-dimensional hybrid asynchronous perfectly matched layer for wave propagation in heterogeneous semi-infinite media. Comptes Rendus. Mécanique, Volume 348 (2020) no. 12, pp. 1003-1030. doi : 10.5802/crmeca.59. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.59/
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