Discrete element simulations of stress distributions in silos: crossover from two to three dimensions
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In this article, the transition from two-dimensional to three-dimensional granular packings is studied using large-scale discrete element computer simulations, focusing on vertical stress profiles and examine how they change with dimensionality.About:
This article is published in Powder Technology.The article was published on 2004-01-26 and is currently open access. It has received 60 citations till now.read more
Citations
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Fast parallel algorithms for short-range molecular dynamics
TL;DR: Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems.
Packings of Compressible Granular Materials
TL;DR: 3D computer simulations and experiments are employed to study random packings of compressible spherical grains under external confining stress, finding a continuous transition in which the stress vanishes as (straight phi-straight Phi(c))(beta), where straight phi is the (solid phase) volume density.
Book ChapterDOI
LIGGGHTS – Open Source Discrete Element Simulations of Granular Materials Based on Lammps
Christoph Kloss,Christoph Goniva +1 more
Journal ArticleDOI
Discrete-particle investigation of friction effect in filling and unsteady/steady discharge in three-dimensional wedge-shaped hopper
TL;DR: In this article, the friction effect in filling and unsteady/steady discharge of a three-dimensional wedge-shaped hopper was considered numerically by the discrete element method.
Journal ArticleDOI
Three dimensional discrete element models for simulating the filling and emptying of silos: Analysis of numerical results
TL;DR: The results of this analysis highlight the potential of DEM models for studying the behaviour of granular materials in silos and hoppers, provided that simplifications are minimized.
References
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Journal ArticleDOI
Fast parallel algorithms for short-range molecular dynamics
TL;DR: In this article, three parallel algorithms for classical molecular dynamics are presented, which can be implemented on any distributed-memory parallel machine which allows for message-passing of data between independently executing processors.
Journal ArticleDOI
A discrete numerical model for granular assemblies
Peter Cundall,Otto D. L. Strack +1 more
TL;DR: The distinct element method as mentioned in this paper is a numerical model capable of describing the mechanical behavior of assemblies of discs and spheres and is based on the use of an explicit numerical scheme in which the interaction of the particles is monitored contact by contact and the motion of the objects modelled particle by particle.
Journal ArticleDOI
Granular solids, liquids, and gases
TL;DR: Granular materials are ubiquitous in the world around us as discussed by the authors and have properties that are different from those commonly associated with either solids, liquids, or gases, and some of the special properties of granular materials and describe recent research developments.
Book
Statics and Kinematics of Granular Materials
TL;DR: In this article, Coulomb's method of wedges and differential slices were used to determine the stress and strain rate of Coulomb material, and the conical yield function was used to predict mass flow rate.
Journal ArticleDOI
Granular flow down an inclined plane: Bagnold scaling and rheology
Leonardo E. Silbert,Deniz Ertas,Gary S. Grest,Thomas C. Halsey,Dov Levine,Steven J. Plimpton +5 more
TL;DR: A systematic, large-scale simulation study of granular media in two and three dimensions, investigating the rheology of cohesionless granular particles in inclined plane geometries, finds that a steady-state flow regime exists in which the energy input from gravity balances that dissipated from friction and inelastic collisions is found.