Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Discrete numerical modeling of loose soil with spherical particles and interparticle rolling friction

Abstract : Discrete numerical simulations were carried out to reproduce experimental results obtained on loose cohesionless soil samples subjected to triaxial tests. Periodic boundary conditions were adopted and 3D spherical discrete elements were chosen. However, to overcome excessive rolling of such an oversimplified particle’s shape, contact rolling resistance was taken into consideration. The influence of both the elastic and the plastic local parameters is discussed. It is shown that the plastic macroscopic behavior of the granular assembly depends only on the plastic parameters at the microscopic scale, and mainly on the plastic rolling moment reflecting the particle’s shape. Moreover, a procedure to obtain an initial density, ranging from loose to dense samples, is proposed by adding adhesion at contacts during the preparation phase. Finally, a calibration procedure is proposed to reproduce experimental results and the limitations of the model are discussed.
Liste complète des métadonnées

Littérature citée [37 références]  Voir  Masquer  Télécharger

http://hal.univ-grenoble-alpes.fr/hal-01951842
Contributeur : Samuel Libot <>
Soumis le : mardi 29 janvier 2019 - 15:02:14
Dernière modification le : lundi 22 juin 2020 - 16:02:16
Document(s) archivé(s) le : mardi 30 avril 2019 - 17:21:28

Fichier

AboulHosn2017.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Rodaina Aboul Aboul, L. Sibille, Nadia Benahmed, B. Chareyre. Discrete numerical modeling of loose soil with spherical particles and interparticle rolling friction. Granular Matter, Springer Verlag, 2017, 19 (1), pp.4. ⟨10.1007/s10035-016-0687-0⟩. ⟨hal-01951842⟩

Partager

Métriques

Consultations de la notice

280

Téléchargements de fichiers

723