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hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierAlgorithms and high performance computing for grand challenge applications [SCALAPPLIX]
dc.contributor.authorANCIAUX, Guillaume
hal.structure.identifierAlgorithms and high performance computing for grand challenge applications [SCALAPPLIX]
dc.contributor.authorCOULAUD, Olivier
hal.structure.identifierAlgorithms and high performance computing for grand challenge applications [SCALAPPLIX]
dc.contributor.authorROMAN, Jean
hal.structure.identifierDAM Île-de-France [DAM/DIF]
dc.contributor.authorZERAH, Gilles
dc.date.accessioned2024-04-15T09:55:28Z
dc.date.available2024-04-15T09:55:28Z
dc.date.issued2008
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/198757
dc.description.abstractEnIn this paper we study the Bridging Method recently developed by T. Belytschko and S. Xiao to couple continuum mechanics with molecular dynamics. This method uses an overlap zone where both models exist and where degrees of freedom are coupled. We analyze the method in the 1D case. Firstly, we show that the spatial weighting of the potential energy leads to some appreciable numerical artifacts. Then, after presenting a modification of the time integration scheme that removes such spurious effects, we introduce the method employed to numerically measure the wave reflection rates. The limitation of these reflections constitute a major issue in all existing coupling methods for dynamics simulations. After discussing some first results achieved from numerical measurements, we present a spectral analysis that attempts to explain the behavior of the coupling zone by treating it as an independent material. The predictions of this spectral analysis are finally compared to some parametric studies issued from 1D coupling simulations.
dc.language.isoen
dc.subject.enmultiscale method
dc.subject.enatomistic-to-continuum coupling
dc.subject.encoupling method
dc.title.enGhost force reduction and spectral analysis of the 1D bridging method
dc.typeRapport
dc.subject.halInformatique [cs]/Modélisation et simulation
bordeaux.hal.laboratoriesLaboratoire Bordelais de Recherche en Informatique (LaBRI) - UMR 5800*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.type.institutionINRIA
bordeaux.type.reportrr
hal.identifierinria-00300603
hal.version1
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//inria-00300603v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2008&rft.au=ANCIAUX,%20Guillaume&COULAUD,%20Olivier&ROMAN,%20Jean&ZERAH,%20Gilles&rft.genre=unknown


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