Communication Dans Un Congrès Année : 2021

AUTOMATIC ADAPTIVE MESH REFINEMENT WITH CONTROLLED ACCURACY IN A MULTISCALE CONTEXT FOR NONLINEAR SOLID MECHANICS

Résumé

During irradiation in reactors, a variety of phenomena of different natures are occurring at different scales. It is crucial to understand such phenomena and to be able to simulate their evolution in time with a controlled accuracy. In this context, we propose to develop an efficient numerical tool enabling us to perform accurate nonlinear quasi-static mechanical simulations with evolving local phenomena. This tool is based on adaptive mesh refinement (AMR) techniques. We adopt a fully automatic algorithm governed by user-prescribed tolerances on errors. We show that the multilevel Local Defect Correction (LDC) method is the most efficient AMR approach in terms of computation time to achieve desired precisions. Its key advantage lies in the separate resolution of problems of limited sizes on a hierarchy of meshes evolving in time

Fichier principal
Vignette du fichier
Paper_NENE2021_DKoliesnikova.pdf (2.74 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence

Dates et versions

hal-03448112 , version 1 (25-11-2021)

Licence

Identifiants

  • HAL Id : hal-03448112 , version 1

Citer

Daria Koliesnikova, Isabelle Ramière, Frédéric Lebon. AUTOMATIC ADAPTIVE MESH REFINEMENT WITH CONTROLLED ACCURACY IN A MULTISCALE CONTEXT FOR NONLINEAR SOLID MECHANICS. International Conference Nuclear Energy for New Europe, Sep 2021, BLED, Slovenia. ⟨hal-03448112⟩
226 Consultations
188 Téléchargements

Partager

  • More