دورية أكاديمية
An efficient algorithm for sampling the shear-modulus reduction curve in the context of wave propagation using the elastoplastic Iwan model
| العنوان: | An efficient algorithm for sampling the shear-modulus reduction curve in the context of wave propagation using the elastoplastic Iwan model |
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| المؤلفون: | Chabot, S, Mercerat, E, D, Glinsky, N, Bonilla, L, F |
| المساهمون: | Institut de pharmacologie et de biologie structurale (IPBS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement (Cerema), Géoazur (GEOAZUR 7329), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud ), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria), ERA 6 Risque sismique (ERA 6 Risque sismique - Equipe recherche associée au LCPC), Avant création Cerema |
| المصدر: | ISSN: 0956-540X. |
| بيانات النشر: | HAL CCSD Oxford University Press (OUP) |
| سنة النشر: | 2021 |
| المجموعة: | HAL Université Côte d'Azur |
| مصطلحات موضوعية: | Computational seismology Site effects Wave propagation Earthquake ground motions, Computational seismology, Site effects, Wave propagation, Earthquake ground motions, [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
| الوصف: | International audience ; The elastoplastic Iwan model has been used since the end of the 1970s to simulate nonlinear soil behaviour in seismic wave propagation. In this work, we present an automatic algorithm to efficiently sample the shear-modulus reduction curve in function of shear deformation, which constitutes the exclusive ingredient of the elastoplastic model. This model requires the data from the shear-modulus reduction as a function of shear deformation, which are readily available in the literature and from specific laboratory tests. The method involves a discretization and interpolation of these data to be used. The quality of the solution depends on the number of interpolated points. However, a larger number of them produce an increase of the computational time. To overcome this, we present an automatic algorithm to efficiently sample the shear-modulus reduction curve. We numerically prove that the chosen discretization of the curve has a strong impact on the calculation load, in addition to the well-known dependence on the input motion amplitude level. Two tests of nonlinear wave propagation in 1-D and 3-D media show the clear gain in computation time when using the proposed automatic sampling algorithm. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-04402150; https://univ-eiffel.hal.science/hal-04402150Test |
| DOI: | 10.1093/gji/ggab431 |
| الإتاحة: | https://doi.org/10.1093/gji/ggab431Test https://univ-eiffel.hal.science/hal-04402150Test |
| حقوق: | http://hal.archives-ouvertes.fr/licences/publicDomainTest/ |
| رقم الانضمام: | edsbas.7CE2C98F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1093/gji/ggab431 |
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