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

Content Provider	Springer Nature Link
Author	Aboul Hosn, Rodaina Sibille, Luc Benahmed, Nadia Chareyre, Bru
Copyright Year	2016
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.
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF
ISSN	14345021
Journal	Granular Matter
Volume Number	19
Issue Number	1
e-ISSN	14347636
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-11-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discrete element method Rolling friction Calibration Compaction technique Soft and Granular Matter, Complex Fluids and Microfluidics Engineering Fluid Dynamics Materials Science Geoengineering, Foundations, Hydraulics Industrial Chemistry/Chemical Engineering Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanics of Materials Materials Science

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