Výsledky vyhledávání

Influential parameters on 3-D synthetic ground motions in a sedimentary basin derived from global sensitivity analysis

Autor: F. De Martin, Bilel Hadri, Emeline Maufroy, Abed Benaichouche, Emmanuel Chaljub, Fabrice Dupros, Philippe Thierry, Pierre Sochala, Fabrice Hollender

Publikováno v: Geophysical Journal International
Geophysical Journal International, 2021, 227 (3), pp.1795-1817. ⟨10.1093/gji/ggab304⟩

SUMMARYWhich physical parameters are the most influential when predicting earthquake ground motions in a 3-D sedimentary basin? We answer quantitatively by doing a global sensitivity analysis of two quantities of interest: the peak ground motions (PG

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::193a7458caa90e019fad9fc0708a9e7c
https://doi.org/10.1093/gji/ggab304

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Akademický článek

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Application of the vectorization library NSIMD to the EFISPEC3D kernel

Autor: G. Quintin, Sylvain Jubertie, K. Péou, F. De Martin

Publikováno v: Fifth EAGE Workshop on High Performance Computing for Upstream.

Summary We show in this work that using the NSIMD vectorization library allowed to obtain better performances on the EFISPEC3D kernel, a spectral-finite-element method to solve the forward seismic wave propagation problem. Moreover the same code with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f1bdfb933d68d87af3640311386a89c
https://doi.org/10.3997/2214-4609.2021612021

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Model Reduction for Large-Scale Earthquake Simulation in an Uncertain 3D Medium

Autor: F. De Martin, O. P. Le Maître, Pierre Sochala

Publikováno v: International Journal for Uncertainty Quantification
International Journal for Uncertainty Quantification, Begell House Publishers, 2020, 10 (2), pp.101-127. ⟨10.1615/Int.J.UncertaintyQuantification.2020031165⟩
International Journal for Uncertainty Quantification, 2020, 10 (2), pp.101-127. ⟨10.1615/Int.J.UncertaintyQuantification.2020031165⟩

International audience; In this paper, we are interested in the seismic wave propagation into an uncertain medium. To this end, we performed an ensemble of 400 large-scale simulations that requires 4 million core-hours of CPU time. In addition to the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f100f231bc3a6fe72a0d9bea4bda757b
https://hal.archives-ouvertes.fr/hal-02570132/document

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Akademický článek

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Surrogate-Based Forward Uncertainty Propagation for Large-Scale Seismic Wave Propagation

Autor: Pierre Sochala, O. P. Le Maître, F. De Martin

Publikováno v: 81st EAGE Conference and Exhibition 2019 Workshop Programme.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::261594d039d36997acd74c13c5c42ec8
https://doi.org/10.3997/2214-4609.201901995

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Surrogate combining harmonic decomposition and polynomial chaos for seismic shear waves in uncertain media

Autor: Pierre Sochala, F. De Martin

Publikováno v: Computational Geosciences
Computational Geosciences, Springer Verlag, 2018, 22 (1), pp.125-144. ⟨10.1007/s10596-017-9677-5⟩

A polynomial chaos (PC) surrogate is proposed to reconstruct seismic time series in one-dimensional (1D) uncertain media. Our approach overcomes the deterioration of the PC convergence rate during long time integration. It is based on a double decomp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5daaf3cd8a4e58ce0d5c70e95a314004
https://hal-brgm.archives-ouvertes.fr/hal-02860335

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ANR EXAMIN DEVELOPMENT OF AN INTEGRATED APPROACH FOR SEISMIC RISK AND LOSS ASSESSMENT BASED ON 'PHYSICS-BASED' WAVE PROPAGATION SIMULATION ACCOUNTING FOR LOCAL AND REGIONAL VARIABILITY. • Identification of local spatial variability, modelling of regional and local spatial variability • Physics based simulation : provides metamodel for the creation of ground motion intensity maps (instead of GMPE) + waveforms for structural analyses Application to Grenoble basin

Autor: I Zentner, F De Martin, C Cornou, P Gehl, P Sochala, A Imtiaz, K Meza-Fajardo, E Chaljub, G Devesa, G Senfaute, B Guillier, M Wathelet, V Alves-Fernandes, E Maufroy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53c0c13978a8b3fae00f8f01b7e9d747

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Earthquake Ground Motion in the Mygdonian Basin, Greece: The E2VP Verification and Validation of 3D Numerical Simulation up to 4 Hz

Autor: Jozef Kristek, F. De Martin, Emmanuel Chaljub, Peter Moczo, Enrico Priolo, Asako Iwaki, Tomotaka Iwata, Emeline Maufroy, V. Etienne, Kyriazis Pitilakis, Pierre-Yves Bard, Maria Manakou, Peter Klin, Nikos Theodoulidis, Cédric Guyonnet-Benaize, Fabrice Hollender

Publikováno v: Bulletin of the Seismological Society of America
Bulletin of the Seismological Society of America, Seismological Society of America, 2015, 105 (3), pp.1342-1364. ⟨10.1785/0120140228⟩
Bulletin of the Seismological Society of America, 2015, 105 (3), pp.1342-1364. ⟨10.1785/0120140228⟩

International audience; n a low‐seismicity context, the use of numerical simulations becomes essential due to the lack of representative earthquakes for empirical approaches. The goals of the EUROSEISTEST Verification and Validation Project (E2VP)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18bad944eab6ab931ca54bef8c186265
https://doi.org/10.1785/0120140228

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