phd-scripts/JMBBM13b/CP_Generator_30_3D.py

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2024-05-13 19:50:21 +00:00
# Import Abaqus and External Modules
from abaqusConstants import *
from abaqus import *
import random
import regionToolset
import mesh
import step
import part
randomSeed=[41557]
for eachModel in range(0,1):
#
# Create Model Database
VerFile=Mdb(pathName="MStructure")
VerModel=VerFile.models['Model-1']
VerAssembly=VerModel.rootAssembly
#
# Underlying Geometry
xSize=0.1
ySize=0.05
#
# Microstructure Geometry
charLength=0.00595 #Grain Side Length
numX=15
numY=5
#
# Other Parametersvgrain vumat
meshSize=0.001
analysis='Tension' # Options: Tension, Bending
#
# Draw Base Part
BasePart=VerModel.Part(name='Base', dimensionality=THREE_D,type=DEFORMABLE_BODY)
BaseSketch = VerModel.ConstrainedSketch(name='Base',sheetSize=200.0)
#
BaseSketch.Line(point1=(0.,0.),point2=(xSize,0.))
BaseSketch.Line(point1=(xSize,0.),point2=(xSize,ySize))
BaseSketch.Line(point1=(xSize,ySize),point2=(0.,ySize))
BaseSketch.Line(point1=(0.,ySize),point2=(0.,0.))
BasePart.BaseSolidExtrude(sketch=BaseSketch, depth=0.006)
BasePart=VerModel.parts['Base']
#
# Draw Microstructure and Partition Base Part
ParSketch=VerModel.ConstrainedSketch(name='Par',sheetSize=200)
yLength=sin(radians(30.))*charLength
xLength=cos(radians(30.))*charLength
offsetX=0.
for i in range(0,numX):
offsetY=0.
for j in range(0,numY):
if j%2==0:
xPos=offsetX
else:
xPos=offsetX+xLength
ParSketch.Line(point1=(xLength+xPos,-yLength+offsetY),point2=(xLength+xPos,yLength+offsetY))
ParSketch.Line(point1=(xLength+xPos,+yLength+offsetY),point2=(xPos,2.*yLength+offsetY))
ParSketch.Line(point1=(xLength+xPos,-yLength+offsetY),point2=(xPos,-2.*yLength+offsetY))
offsetY=offsetY+3.*yLength
offsetX=offsetX+2.*xLength
for eachFace in BasePart.faces:
if eachFace.getNormal()==(0.0,0.0,1.0):
targetFace=eachFace
print targetFace
BasePart.PartitionFaceBySketch(faces=targetFace, sketch=ParSketch)
#
# Generate Sections and Section Assignments
labelcount=1
regions=BasePart.faces
for eachregion in regions:
mlabel='Mat'+str(labelcount)
VerModel.PEGSection(name=mlabel, material=mlabel, thickness=0.01,
wedgeAngle1=0.0, wedgeAngle2=0.0)
BasePart.SectionAssignment(region=(eachregion,),
sectionName=mlabel, offset=0.0, offsetField='')
labelcount=labelcount+1
#
# Mesh Part
BasePart.ReferencePoint(point=(0.0, 0.0, 0.0))
offsetX=0.
offsetY=0.
ParSketch2=VerModel.ConstrainedSketch(name='Hex',sheetSize=200, transform=partTransform)
for i in range(0,2*numX):
ParSketch2.Line(point1=(offsetX,0.),point2=(offsetX,2.*charLength*numY))
offsetX=offsetX+xLength
for i in range(0,numY):
ParSketch2.Line(point1=(0.,offsetY),point2=(2.*charLength*numX,offsetY))
offsetY=offsetY+3.*yLength
BasePart.PartitionFaceBySketch(faces=BasePart.faces, sketch=ParSketch2)
BasePart.setMeshControls(regions=BasePart.faces, elemShape=QUAD, technique=SWEEP)
BasePart.seedPart(size=meshSize)
pickedRegions =(BasePart.faces, )
elemType1 = mesh.ElemType(elemCode=CPEG8R, elemLibrary=STANDARD)
BasePart.setElementType(regions=pickedRegions, elemTypes=(elemType1,))
BasePart.generateMesh()
#
#Steps
VerModel.StaticStep(name='Step-1', previous='Initial',
maxNumInc=100000, initialInc=0.03, minInc=1e-07, maxInc=0.15, nlgeom=ON, timePeriod=20.)
VerModel.fieldOutputRequests['F-Output-1'].setValues(variables=(
'LE', 'RF', 'S', 'U'), timeInterval=0.2, timeMarks=OFF)
#
#Boundary Conditions
VerAssembly.Instance(name='Strut',part=BasePart, dependent=ON)
iNodes=VerAssembly.instances['Strut'].nodes
toler=0.01*meshSize
Left=iNodes.getByBoundingBox(xMin=-toler,xMax=toler,yMin=-toler,yMax=ySize+toler)
BLeft=iNodes.getByBoundingBox(xMin=-toler,xMax=toler,yMin=-toler,yMax=toler)
Right=iNodes.getByBoundingBox(xMin=xSize-toler,xMax=xSize+toler,yMin=toler,yMax=ySize+toler)
BRight=iNodes.getByBoundingBox(xMin=xSize-toler,xMax=xSize+toler,yMin=-toler,yMax=toler)
#
Lregion=regionToolset.Region(nodes=Left)
BLregion=regionToolset.Region(nodes=BLeft)
Rregion=regionToolset.Region(nodes=Right)
BRregion=regionToolset.Region(nodes=BRight)
#
VerModel.SmoothStepAmplitude(name='Amp-1', timeSpan=TOTAL, data=(( 0.0, 0.0), (24.00, 1.0)))
VerModel.DisplacementBC(name='LeftX', createStepName='Initial',
region=Lregion, u1=0.0, u2=UNSET, u3=UNSET, ur1=UNSET, ur2=UNSET,
ur3=UNSET, amplitude=UNSET, fixed=OFF, distributionType=UNIFORM)
VerModel.DisplacementBC(name='BottomY1', createStepName='Initial',
region=BLregion, u1=UNSET, u2=0.0, u3=UNSET, ur1=UNSET, ur2=UNSET,
ur3=UNSET, amplitude=UNSET, fixed=OFF, distributionType=UNIFORM)
if analysis=='Tension':
VerModel.DisplacementBC(name='Tension', createStepName='Step-1',
region=BRregion, u1=0.5*xSize, u2=UNSET, u3=UNSET, ur1=UNSET, ur2=UNSET,
ur3=UNSET, amplitude=UNSET, fixed=OFF, distributionType=UNIFORM)
VerModel.DisplacementBC(name='BottomY2', createStepName='Initial',
region=BRregion, u1=UNSET, u2=0.0, u3=UNSET, ur1=UNSET, ur2=UNSET,
ur3=UNSET, amplitude=UNSET, fixed=OFF, distributionType=UNIFORM)
VerModel.boundaryConditions['Tension'].setValues(amplitude='Amp-1')
else:
VerModel.DisplacementBC(name='Bending', createStepName='Step-1',
region=BRregion, u1=UNSET, u2=UNSET, u3=UNSET, ur1=UNSET, ur2=UNSET,
ur3=-6., amplitude=UNSET, fixed=OFF, distributionType=UNIFORM)
VerModel.boundaryConditions['Bending'].setValues(amplitude='Amp-1')
#
VerAssembly.Set(nodes=Right, name='Right')
VerAssembly.Set(nodes=BRight, name='BRight')
if analysis=='Tension':
VerModel.Equation(name='Constraint-1', terms=((1.0, 'Right', 1), ( -1.0, 'BRight', 1)))
else:
region1=VerAssembly.sets['BRight']
region2=VerAssembly.sets['Right']
VerModel.MultipointConstraint(name='Constraint-2',
controlPoint=region1, surface=region2, mpcType=BEAM_MPC,
userMode=DOF_MODE_MPC, userType=0, csys=None)
#
#Create Job and write input file
if grainType=='Square':
letter1='S'
elif grainType=='Hexagon':
letter1='H'
elif grainType=='Voronoi':
letter1='V'
if analysis=='Tension':
letter2='T'
else:
letter2='B'
label='W'+str(numY)+'L'+str(numX)+letter1+letter2+str(eachModel)
VerFile.Job(name=label, model='Model-1', type=ANALYSIS,userSubroutine='ucrystal.for')
VerFile.jobs[label].writeInput(consistencyChecking=OFF)
# VerFile.close()