Question #643163 on Yade changed:
https://answers.launchpad.net/yade/+question/643163
Status: Answered => Open
Jason Hsin is still having a problem:
Hi Bruno,
Thanks for the answer.
I'm currently just playing around with the simulation and trying to build the
code from scratch. However, at the stage of simply creating sphere packed
cylindrical volume, without imposing any complicated interaction, the particles
seems to fly around with no sign of bonding in between.
Here is the code.
Thanks for the help in advance
=========================
from yade import pack
idParticulate=O.materials.append(CohFrictMat(young=30e9,poisson=0.2,alphaKr=3,alphaKtw=3,density=2700,frictionAngle=0.6))
## construct the predicate first
pred=pack.inCylinder(centerBottom=(0,0,-.05),centerTop=(0,0,.05),radius=.05)
## alternatively: pack.inHyperboloid((0,0,-.1),(0,0,.1),.05,.03)
## pack the predicate with spheres (will be explained later)
spheres=pack.randomDensePack(pred,spheresInCell=2000,radius=3.5e-3)
## add spheres to simulation
O.bodies.append(spheres)
O.engines=[
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb()]),
InteractionLoop(
[Ig2_Sphere_Sphere_ScGeom6D()],
[Ip2_FrictMat_FrictMat_FrictPhys()],
[Law2_ScGeom6D_FrictPhys_CohesionMoment()]
),
NewtonIntegrator(damping=.2),
]
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