Question #254731 on Yade changed:
https://answers.launchpad.net/yade/+question/254731
Status: Answered => Open
Ferenc Safranyik is still having a problem:
Hi Jerome,
thanks for the quick help. If I set up the cohesion, I get an error message
"Segmentation fault".
Here is my script:
from yade import pack
from yade import qt
qt.View()
Alsoresz =
O.bodies.append(geom.utils.facetBox((.5,.5,.1),(.5,.5,.1),dynamic=False,wallMask=31))
Felsoresz = O.bodies.append(geom.utils.facetBox((.5,.5,.5),(.5,.5,.3), wallMask
= 15))
densT = 2600
ET = 15e4
nuT = .4
frictAngT = .52
nCoh = 1e1
sCoh = 5e30
eRoll = .1
aKr = 2
aKtw = 2
talaj =
O.materials.append(CohFrictMat(young=ET,poisson=nuT,density=densT,frictionAngle=frictAngT,normalCohesion=nCoh,
shearCohesion=sCoh,isCohesive=True,momentRotationLaw=True,etaRoll=eRoll,label='talaj'))
felho = pack.SpherePack()
felho.makeCloud((0,0,0),(1,1,.8),rMean=.03, rRelFuzz=.001)
particles = O.bodies.append([sphere(c,r,material='talaj') for c,r in felho])
O.engines=[
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Wall_Aabb(),Bo1_Facet_Aabb()]),
InteractionLoop(
[Ig2_Sphere_Sphere_ScGeom(),Ig2_Wall_Sphere_ScGeom(),
Ig2_Facet_Sphere_ScGeom()],
[Ip2_FrictMat_FrictMat_FrictPhys(),Ip2_CohFrictMat_CohFrictMat_CohFrictPhys(label='coh')],
[Law2_ScGeom_FrictPhys_CundallStrack(),Law2_ScGeom6D_CohFrictPhys_CohesionMoment()]
),
NewtonIntegrator(damping=.1,gravity=(0,0,-9.81),label='newton'),
]
O.dt=.1*utils.PWaveTimeStep()
def Atlag():
print utils.unbalancedForce()
if O.iter > 1000:
if utils.unbalancedForce() < .01:
coh.setCohesionNow = True
O.engines=O.engines + [PyRunner(command='Atlag()',iterPeriod = 1)]
O.run()
Thanks.
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