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Title of Journal: Granular Matter

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Abbravation: Granular Matter

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Springer-Verlag

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DOI

10.1016/j.bbagen.2004.02.012

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1434-7636

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DEM simulation of the packing structure and wall l

Authors: Joanna Sykut Marek Molenda Józef Horabik
Publish Date: 2008/03/07
Volume: 10, Issue: 4, Pages: 273-
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Abstract

The filling and discharge of a twodimensional wedgedbottom silo holding circular objects was modelled using DEM technique to examine the influence of method of silo filling on distribution of orientations of unit vectors normal to contact points contact normals and normal contact forces It was found that packing structure determined through method of generation of grain bedding significantly influenced distribution of contact normals Nearly hexagonal network of contact normals was obtained for central filling of silo while sprinkle filling provided higher anisotropy of contact normals The significance of frictional conditions and number of particles in system on distribution of contact normals was analysed Increase in number of grains reduced disturbance from boundaries on behaviour of assembly Distribution of loads on silo bottom obtained in simulation for different wall roughness was found in qualitative agreement with experimental data

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Other Papers In This Journal:
  1. Arching effect on lateral pressure of confined granular material: numerical and theoretical analysis
  2. FE-studies on Shear Localization in an Anistropic Micro-polar Hypoplastic Granular Material
  3. Discrete Element Method Analysis of Railtrack Ballast Degradation during Cyclic Loading
  4. Modeling the transition between stable and unstable operation while emptying a silo
  5. Numerical simulation of particle flow in a sand trap
  6. The behaviour of water-immersed glass-bronze particulate systems under vertical vibration
  7. Modelling and analysis of heat transfer through 1D complex granular system
  8. Living quicksand
  9. Mesoscale simulation of clay aggregate formation and mechanical properties
  10. DEM simulation of particle attrition in dilute-phase pneumatic conveying
  11. Particle characterization using THz spectroscopy
  12. Effects of triaxial confining pressure and strain rate on stick-slip behavior of a dry granular material
  13. Absence of ‘fragility’ and mechanical response of jammed granular materials
  14. A new method for the analysis of compaction processes in high-porosity agglomerates
  15. A new method for the analysis of compaction processes in high-porosity agglomerates
  16. An algorithm to generate random dense arrangements for discrete element simulations of granular assemblies
  17. The critical-state yield stress (termination locus) of adhesive powders from a single numerical experiment
  18. Application of the theory of Markov chains to model heat and mass transfer between stochastically moving particulate and gas flows
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