#!/usr/bin/python
# -*- coding: utf-8 -*-
from yade import utils
from yade import ymport
sphereRadius = 0.05
## Import wall's geometry
walls = O.bodies.append(ymport.stl('ring.stl'))
def fill_cylinder_with_spheres(sphereRadius, cylinderRadius, cylinderHeight,
cylinderOrigin, cylinderSlope):
spheresCount = 0
for h in xrange(0, int(cylinderHeight / sphereRadius / 2)):
for r in xrange(1, int(cylinderRadius / sphereRadius / 2)):
dfi = asin(0.5 / r) * 2
for a in xrange(0, int(6.28 / dfi)):
x = cylinderOrigin[0] + 2 * r * sphereRadius * cos(dfi * a)
y = cylinderOrigin[1] + 2 * r * sphereRadius * sin(dfi * a)
z = cylinderOrigin[2] + h * 2 * sphereRadius
s = utils.sphere([
x, y * cos(cylinderSlope) + z * sin(cylinderSlope),
z * cos(cylinderSlope) - y * sin(cylinderSlope)
], sphereRadius)
O.bodies.append(s)
spheresCount += 1
return spheresCount
## PhysicalParameters
Density = 2400
frictionAngle = radians(35)
tc = 0.001
en = 0.3
es = 0.3
## Import wall's geometry
params = getViscoelasticFromSpheresInteraction(tc, en, es)
facetMat = O.materials.append(ViscElMat(
frictionAngle=frictionAngle, **params)) # **params sets kn, cn, ks, cs
sphereMat = O.materials.append(
ViscElMat(density=Density, frictionAngle=frictionAngle, **params))
from yade import ymport
fctIds = O.bodies.append(
ymport.stl('baraban.stl', color=(1, 0, 0), material=facetMat))
## Spheres
sphereRadius = 0.2
nbSpheres = (10, 10, 10)
#nbSpheres = (50,50,50)
for i in xrange(nbSpheres[0]):
for j in xrange(nbSpheres[1]):
for k in xrange(nbSpheres[2]):
x = (i * 2 - nbSpheres[0]) * sphereRadius * 1.1
y = (j * 2 - nbSpheres[1]) * sphereRadius * 1.1
z = (k * 2 - nbSpheres[2]) * sphereRadius * 1.1
s = sphere([x, y, z], sphereRadius, material=sphereMat)
O.bodies.append(s)
## Timestep
O.dt = .2 * tc
numSpheres=0.
for o in O.bodies:
if isinstance(o.shape,Sphere):
o.shape.color=(0,0,1)
numSpheres+=1
R+=o.shape.radius
if o.shape.radius>Rmax:
Rmax=o.shape.radius
else :
o.shape.color=(0,0,0)
Rmean=R/numSpheres
print('number of spheres=', numSpheres, ' | Rmean=', Rmean, ' | dim=', dim)
############################ import stl file
O.bodies.append(ymport.stl(DFN+'.stl',color=(0.9,0.9,0.9),wire=False,material=facetMat))
############################ engines definition
interactionRadius=1.;
O.engines=[
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb(aabbEnlargeFactor=interactionRadius,label='is2aabb'),Bo1_Facet_Aabb()]),
InteractionLoop(
[Ig2_Sphere_Sphere_ScGeom(interactionDetectionFactor=interactionRadius,label='ss2d3dg'),Ig2_Facet_Sphere_ScGeom()],
[Ip2_JCFpmMat_JCFpmMat_JCFpmPhys(cohesiveTresholdIteration=1,label='interactionPhys')],
[Law2_ScGeom_JCFpmPhys_JointedCohesiveFrictionalPM(smoothJoint=True,label='interactionLaw')]
),
NewtonIntegrator(damping=1)
]
ysup - 0.1 * Rmean,
zsup - 0.1 * Rmean)
walls = utils.aabbWalls(oversizeFactor=1.5,
extrema=(mn, mx),
thickness=0.1 * min(X, Y, Z),
material=wallMat)
wallIds = O.bodies.append(walls)
### packing
O.bodies.append(ymport.text(PACK + '.spheres', material=sphereMat))
### DFN
O.bodies.append(
ymport.stl(DFN + '.stl',
color=(0.9, 0.9, 0.9),
wire=False,
material=wallMat))
execfile('identifyInitialFractures.py')
### to reduce initial crack extent: penny crack in the (Y,Z) plane, centre at Yc=0.5 and Zc=0.5, radius 0.1
for o in O.bodies:
if isinstance(o.shape, Sphere):
if ((o.state.pos[2] - 0.5)**2 +
(o.state.pos[1] - 0.5)**2) > (0.05 + Rmean)**2:
o.state.onJoint = False
#### engines
### Triaxial Engine
triax = TriaxialStressController(internalCompaction=False,
stressMask=7,
goal1=Sxx,
from operator import itemgetter
indices, zValues_sorted = zip(*sorted(enumerate(zValues), key=itemgetter(1)))
list(zValues)
list(indices)
sp_new = []
for i in range(0, len(sp)):
sp_new.append(sp[indices[i]])
Nspheres = 122000
sp_new = sp_new[0:Nspheres]
from yade import ymport
facets = ymport.stl(fileName + '.stl', color=(0, 1, 0), material=Steel)
fctIds = range(len(facets))
NSTEPS = 1000
if numMPIThreads > 1:
mp.mprint("appending bodies, rank", mp.rank)
if mp.rank == 0:
O.bodies.append(facets)
mp.mprint("master has", len(O.bodies), "facets")
else:
import numpy as np
layers = np.array_split(sp_new, numMPIThreads - 1)
mp.mprint("layers", [len(l) for l in layers])
layerNo = mp.rank - 1 #rank zero is for facets
## Omega
o=Omega()
## PhysicalParameters
Density=2400
frictionAngle=radians(35)
sphereRadius=0.05
tc = 0.001
en = 0.3
es = 0.3
## Import wall's geometry
facetMat=O.materials.append(ViscElMat(frictionAngle=frictionAngle,tc=tc,en=en,et=es))
sphereMat=O.materials.append(ViscElMat(density=Density,frictionAngle=frictionAngle,tc=tc,en=en,et=es))
walls = O.bodies.append(ymport.stl('ring.stl',material=facetMat))
def fill_cylinder_with_spheres(sphereRadius,cylinderRadius,cylinderHeight,cylinderOrigin,cylinderSlope):
spheresCount=0
for h in xrange(0,int(cylinderHeight/sphereRadius/2)):
for r in xrange(1,int(cylinderRadius/sphereRadius/2)):
dfi = asin(0.5/r)*2
for a in xrange(0,int(6.28/dfi)):
x = cylinderOrigin[0]+2*r*sphereRadius*cos(dfi*a)
y = cylinderOrigin[1]+2*r*sphereRadius*sin(dfi*a)
z = cylinderOrigin[2]+h*2*sphereRadius
s=sphere([x,y*cos(cylinderSlope)+z*sin(cylinderSlope),z*cos(cylinderSlope)-y*sin(cylinderSlope)],sphereRadius,material=sphereMat)
o.bodies.append(s)
spheresCount+=1
return spheresCount
numSpheres=0.
for o in O.bodies:
if isinstance(o.shape,Sphere):
o.shape.color=(0,0,1)
numSpheres+=1
R+=o.shape.radius
if o.shape.radius>Rmax:
Rmax=o.shape.radius
else :
o.shape.color=(0,0,0)
Rmean=R/numSpheres
print 'number of spheres=', numSpheres, ' | Rmean=', Rmean, ' | dim=', dim
############################ import stl file
O.bodies.append(ymport.stl(DFN+'.stl',color=(0.9,0.9,0.9),wire=False,material=facetMat))
############################ engines definition
interactionRadius=1.;
O.engines=[
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb(aabbEnlargeFactor=interactionRadius,label='is2aabb'),Bo1_Facet_Aabb()]),
InteractionLoop(
[Ig2_Sphere_Sphere_ScGeom(interactionDetectionFactor=interactionRadius,label='ss2d3dg'),Ig2_Facet_Sphere_ScGeom()],
[Ip2_JCFpmMat_JCFpmMat_JCFpmPhys(cohesiveTresholdIteration=1,label='interactionPhys')],
[Law2_ScGeom_JCFpmPhys_JointedCohesiveFrictionalPM(smoothJoint=True,label='interactionLaw')]
),
NewtonIntegrator(damping=1)
]
from builtins import range
import time
## PhysicalParameters
Density=2400
frictionAngle=radians(35)
tc = 0.001
en = 0.3
es = 0.3
## Import wall's geometry
facetMat=O.materials.append(ViscElMat(frictionAngle=frictionAngle,tc=tc,en=en,et=es)) # **params sets kn, cn, ks, cs
sphereMat=O.materials.append(ViscElMat(density=Density,frictionAngle=frictionAngle,tc=tc,en=en,et=es))
from yade import ymport
fctIds=O.bodies.append(ymport.stl('baraban.stl',color=(1,0,0),material=facetMat))
## Spheres
sphereRadius = 0.2
nbSpheres = (10,10,10)
#nbSpheres = (50,50,50)
for i in range(nbSpheres[0]):
for j in range(nbSpheres[1]):
for k in range(nbSpheres[2]):
x = (i*2 - nbSpheres[0])*sphereRadius*1.1
y = (j*2 - nbSpheres[1])*sphereRadius*1.1
z = (k*2 - nbSpheres[2])*sphereRadius*1.1
s=sphere([x,y,z],sphereRadius,material=sphereMat)
O.bodies.append(s)
## Timestep
O.dt=.2*tc
# -*- coding: utf-8 -*-
from __future__ import print_function
from builtins import range
import random
from yade import ymport
## PhysicalParameters
## Variant of mesh
mesh = 'coarse'
#mesh = 'fine'
#mesh = 'tiny'
## Import geometry
rod = O.bodies.append(ymport.stl('rod-'+mesh+'.stl',wire=True))
# Spheres
sphereRadius = 0.01
nbSpheres = (32,11,32)
print("Creating %d spheres..."%(nbSpheres[0]*nbSpheres[1]*nbSpheres[2]), end=' ')
for i in range(nbSpheres[0]):
for j in range(nbSpheres[1]):
for k in range(nbSpheres[2]):
x = (i*2 - nbSpheres[0])*sphereRadius*1.1+sphereRadius*random.uniform(-0.1,0.1)
y = -j*sphereRadius*2.2-0.01
z = (k*2 - nbSpheres[2])*sphereRadius*1.1+sphereRadius*random.uniform(-0.1,0.1)
r = random.uniform(sphereRadius,sphereRadius*0.9)
fixed = False
color=[0.51,0.52,0.4]
if (i==0 or i==nbSpheres[0]-1 or j==nbSpheres[1]-1 or k==0 or k==nbSpheres[2]-1):
#!/usr/bin/python
# -*- coding: utf-8 -*-
from yade import utils
import random
from yade import ymport
## PhysicalParameters
## Variant of mesh
mesh = 'coarse'
#mesh = 'fine'
#mesh = 'tiny'
## Import geometry
rod = O.bodies.append(ymport.stl('rod-' + mesh + '.stl', wire=True))
# Spheres
sphereRadius = 0.01
nbSpheres = (32, 11, 32)
print "Creating %d spheres..." % (nbSpheres[0] * nbSpheres[1] * nbSpheres[2]),
for i in xrange(nbSpheres[0]):
for j in xrange(nbSpheres[1]):
for k in xrange(nbSpheres[2]):
x = (i * 2 - nbSpheres[0]
) * sphereRadius * 1.1 + sphereRadius * random.uniform(
-0.1, 0.1)
y = -j * sphereRadius * 2.2 - 0.01
z = (k * 2 - nbSpheres[2]
) * sphereRadius * 1.1 + sphereRadius * random.uniform(
-0.1, 0.1)
#!/usr/bin/python
# -*- coding: utf-8 -*-
from yade import ymport
sphereRadius=0.05
## Import wall's geometry
walls = O.bodies.append(ymport.stl('ring.stl'))
def fill_cylinder_with_spheres(sphereRadius,cylinderRadius,cylinderHeight,cylinderOrigin,cylinderSlope):
spheresCount=0
for h in xrange(0,int(cylinderHeight/sphereRadius/2)):
for r in xrange(1,int(cylinderRadius/sphereRadius/2)):
dfi = asin(0.5/r)*2
for a in xrange(0,int(6.28/dfi)):
x = cylinderOrigin[0]+2*r*sphereRadius*cos(dfi*a)
y = cylinderOrigin[1]+2*r*sphereRadius*sin(dfi*a)
z = cylinderOrigin[2]+h*2*sphereRadius
s=sphere([x,y*cos(cylinderSlope)+z*sin(cylinderSlope),z*cos(cylinderSlope)-y*sin(cylinderSlope)],sphereRadius)
O.bodies.append(s)
spheresCount+=1
return spheresCount
## Spheres
spheresCount=0
spheresCount+=fill_cylinder_with_spheres(sphereRadius,0.5,0.10,[0,0,0],radians(0))
print "Number of spheres: %d" % spheresCount
## Engines
O.engines=[
o=Omega()
## PhysicalParameters
Density=2400
frictionAngle=radians(35)
sphereRadius=0.05
tc = 0.001
en = 0.3
es = 0.3
## Import wall's geometry
params=utils.getViscoelasticFromSpheresInteraction(tc,en,es)
facetMat=O.materials.append(ViscElMat(frictionAngle=frictionAngle,**params)) # **params sets kn, cn, ks, cs
sphereMat=O.materials.append(ViscElMat(density=Density,frictionAngle=frictionAngle,**params))
walls = O.bodies.append(ymport.stl('ring.stl',material=facetMat))
def fill_cylinder_with_spheres(sphereRadius,cylinderRadius,cylinderHeight,cylinderOrigin,cylinderSlope):
spheresCount=0
for h in xrange(0,int(cylinderHeight/sphereRadius/2)):
for r in xrange(1,int(cylinderRadius/sphereRadius/2)):
dfi = asin(0.5/r)*2
for a in xrange(0,int(6.28/dfi)):
x = cylinderOrigin[0]+2*r*sphereRadius*cos(dfi*a)
y = cylinderOrigin[1]+2*r*sphereRadius*sin(dfi*a)
z = cylinderOrigin[2]+h*2*sphereRadius
s=utils.sphere([x,y*cos(cylinderSlope)+z*sin(cylinderSlope),z*cos(cylinderSlope)-y*sin(cylinderSlope)],sphereRadius,material=sphereMat)
o.bodies.append(s)
spheresCount+=1
return spheresCount
