• Chỉ mục bởi
  • Năm xuất bản

Discrete element simulation of wet granular materials: Plastic compression

Than V.-D. CNRS, ENPC, IFSTTAR, Laboratoire Navier (UMR 8205), Université Paris-Est, Marne-la-Vallee-Cedex 2, F77455, France|
Pereira J.-M. | Tang A.-M. | Roux J.-N. Department of Civil Engineering, College of Technology, University of Danang, 48 Cao-Thang St., Hai-Chau Dist., Da Nang, Viet Nam|

Proceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015 Số , năm 2015 (Tập , trang 789-800)


Tài liệu thuộc danh mục: ISI, Scopus

Conference Paper


Từ khóa: Consolidation; Assembling process; Capillary cohesion; Capillary force; Discrete element simulation; Interstitial liquid; Isotropic compressions; Plastic compression; Wet granular materials; Finite difference method
Tóm tắt tiếng anh
We use Discrete Element Method (DEM) simulations in three dimensions (3D) to study the quasistatic response of very loose assemblies of frictional spherical grains to an isotropic compression in the presence of a small amount of an interstitial liquid, which gives rise to capillary menisci and attractive forces. Previous results obtained in 2D [8] are generalized to systems that may be observed in the laboratory. We study the influence of the initial assembling process and of various micromechanical parameters on the plastic compression curves, from very loose states assembled at low P∗ to maximally compressed ones in which capillary cohesion is negligible at large P∗. We also show how the plastic response along those compression curves is influenced by rolling resistance in contacts.

Xem chi tiết