Question #689485 on Yade changed:
https://answers.launchpad.net/yade/+question/689485
xxxea posted a new comment:
god……I post the wrong code and here is the exact code of script
"cylinder-cylinder.py" .
# encoding: utf-8
"An example showing how to create two cylinders which are interacting."
from yade.gridpfacet import *
#### Parameter ####
L=1. # length of the cylinder element
r=0.1 # radius of the cylinder element
phi=30. # friction angle
E=1e6 # Young's modulus
#### Engines ####
O.engines=[
ForceResetter(),
InsertionSortCollider([
Bo1_GridConnection_Aabb(),
]),
InteractionLoop([
Ig2_GridNode_GridNode_GridNodeGeom6D(),
Ig2_GridConnection_GridConnection_GridCoGridCoGeom(),
],
[
Ip2_CohFrictMat_CohFrictMat_CohFrictPhys(setCohesionNow=True,setCohesionOnNewContacts=False),
# internal cylinder physics
Ip2_FrictMat_FrictMat_FrictPhys() # physics for external
interactions, i.e., cylinder-cylinder interaction
],
[
Law2_ScGeom6D_CohFrictPhys_CohesionMoment(), # contact law
for "internal" cylinder forces
Law2_GridCoGridCoGeom_FrictPhys_CundallStrack() # contact law
for cylinder-cylinder interaction
]
),
NewtonIntegrator(gravity=(-0.,0,-10),damping=0.5,label='newton'),
]
#### Creat materials ####
O.materials.append( CohFrictMat(
young=E,poisson=0.3,density=1000,frictionAngle=radians(phi),normalCohesion=1e10,shearCohesion=1e10,momentRotationLaw=True,label='cMat'
) ) # material to create the gridConnections
O.materials.append( FrictMat(
young=E,poisson=0.3,density=1000,frictionAngle=radians(phi),label='fMat' ) ) #
material for general interactions
#### Create cylinders ####
nodesIds=[]
cylIds=[]
cylinder((0,0,0),(L,0,0),radius=r,nodesIds=nodesIds,cylIds=cylIds,
fixed=True,color=[1,0,0],intMaterial='cMat',extMaterial='fMat')
cylinder((L/4,2*L/3,L),(L/4,-L/3,L),radius=r,nodesIds=nodesIds,cylIds=cylIds,
fixed=False,color=[0,1,0],intMaterial='cMat',extMaterial='fMat')
cylinder((0,2*L/3,L),(0,-L/3,L),radius=r,nodesIds=nodesIds,cylIds=cylIds,
fixed=False,color=[0,1,0],intMaterial='cMat',extMaterial='fMat')
cylinder((L/2,L/2,L),(L/2,-L/2,L),radius=r,nodesIds=nodesIds,cylIds=cylIds,
fixed=False,color=[0,1,1],intMaterial='cMat',extMaterial='fMat')
cylinder((3*L/4,L/3,L),(3*L/4,-2*L/3,L),radius=r,nodesIds=nodesIds,cylIds=cylIds,
fixed=False,color=[0,0,1],intMaterial='cMat',extMaterial='fMat')
cylinder((L,L/3,L),(L,-2*L/3,L),radius=r,nodesIds=nodesIds,cylIds=cylIds,
fixed=False,color=[0,0,1],intMaterial='cMat',extMaterial='fMat')
#### For viewing ####
from yade import qt
qt.View()
Gl1_Sphere.stripes=True
#### Set a time step ####
O.dt=1e-06
#### Allows to reload the simulation ####
O.saveTmp()
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