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[Mithushan Soundaranathan <question696052@xxxxxxxxxxxxxxxxxxxxx>]

Question #696052 on Yade changed:
https://answers.launchpad.net/yade/+question/696052

Mithushan Soundaranathan posted a new comment:
#!/usr/bin/env python
#encoding: ascii

# Testing of the Deformation Enginge with Luding Contact Law
# Modified Oedometric Test

from yade import utils, plot, timing
from yade import pack
import pandas as pd

o = Omega()

# Physical parameters
fr        = 0.52
rho       = 1564 #kg/m3
Diameter  = 0.011 #110 micrometer
r1        = Diameter
r2        = Diameter
k1        = 1005.0
kp        = 10.0*k1
kc        = k1 * 0.0
ks        = k1 * 0.1
DeltaPMax = Diameter/3.0
Chi1      = 0.34

o.dt = 1.0e-5

particleMass = 4.0/3.0*math.pi*r1*r1*r1*rho

Vi1 = math.sqrt(k1/particleMass)*DeltaPMax*Chi1

PhiF1 = DeltaPMax*(kp-k1)*(r1+r2)/(kp*2*r1*r2)


#*************************************

# Add material
mat1 = O.materials.append(LudingMat(frictionAngle=fr, density=rho, k1=k1, kp=kp, ks=ks, kc=kc, PhiF=PhiF1, G0 = 0.0))


# Spheres for compression

sp=pack.SpherePack()
sp.makeCloud((-4.0*Diameter,-4.0*Diameter,-2.5*Diameter),(3.0*Diameter,3.0*Diameter,15.0*Diameter), rMean=Diameter/2.0, num=300)
sp.toSimulation()

##No of particles
count = 0
for b in O.bodies:
    if isinstance(b.shape, Sphere):
        count +=1
##Mass of particles
n_p=count


######################################################################
walls=O.bodies.append(yade.geom.facetCylinder((0,0,-0.02),radius=0.055,height=0.1,segmentsNumber=20,wallMask=6,material=mat1))

##Top punch##
#find max Z coordinate of your cloud
max_z = aabbExtrema()[1][2]
min_z = aabbExtrema()[0][2]

Top_punch=O.bodies.append(wall((0,0,max_z), axis=2, sense=-1, material=mat1))
O.bodies[Top_punch].state.vel = (0, 0, -0.01) 

df = pd.DataFrame(columns=['time','Porosity','Maxoverlap','Stress'])
df.to_csv('PH102_Haustein_data.csv')
from csv import writer
def append_list_as_row(file_name, list_of_elem):
    # Open file in append mode
    with open(file_name, 'a+', newline='') as write_obj:
        # Create a writer object from csv module
        csv_writer = writer(write_obj)
        # Add contents of list as last row in the csv file
        csv_writer.writerow(list_of_elem)


# Add engines
o.engines = [
  ForceResetter(),
  InsertionSortCollider([Bo1_Sphere_Aabb(aabbEnlargeFactor=1.05),
                         Bo1_Wall_Aabb(),
                         Bo1_Facet_Aabb()
                         ]),
  InteractionLoop(
    [Ig2_Sphere_Sphere_ScGeom(interactionDetectionFactor=1.05),
     Ig2_Facet_Sphere_ScGeom(),
     Ig2_Wall_Sphere_ScGeom()],
    [Ip2_LudingMat_LudingMat_LudingPhys()],
    [Law2_ScGeom_LudingPhys_Basic()]
  ),
  NewtonIntegrator(damping=0.1, gravity=[0, 0, -9.81]),
  #VTKRecorder(fileName='vtk-',recorders=['all'],iterPeriod=10000),
  #PyRunner(command='checkForce()', realPeriod=1, label="fCheck"),
  #PyRunner(command='print(voxelPorosity(resolution=600,start=aabbExtrema()[0],end=aabbExtrema()[1]))', realPeriod=15),
  PyRunner(command='checkdata()', realPeriod=1),
  DeformControl(label="DefControl")
]

def checkdata():
	if o.realtime<40:
		return
	else:
		time=o.realtime
		porosity=voxelPorosity(resolution=600,start=aabbExtrema()[0],end=aabbExtrema()[1])
		Maxoverlap=utils.maxOverlapRatio()
		stress=getStress().trace()/3.
		row_contents = [time,time,porosity,Maxoverlap,stress]
		append_list_as_row('PH102_Haustein_data.csv', row_contents)

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