terramechanics, computational mechanics, contact problems

DEM analysis of sand flow

Outline

DEM

  • 2D analysis
  • 1G condition
  • Circular element with random radii
  • Parameter: friction coefficient, coefficient of rolling friction

experimental result

Animation

Effect of friction coefficient (1)

  • Friciton coefficient: 0.3
  • Rolling friction coefficient: 4X10^-5 m

Effect of friction coefficient (2)

  • Friciton coefficient: 0.0
  • Rolling friction coefficient: 4X10^-5 m

Effect of rolling friction coefficient (1)

  • Friciton coefficient: 0.6
  • Rolling friction coefficient: 4X10^-5 m

Effect of rolling friction coefficient (2)

  • Friciton coefficient: 0.6
  • Rolling friction coefficient: 0.0 m

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