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jBatch.py
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# Creates a simulation batch of a cracked half-plane with constant crack length a = 30 mm
# The load is applied a remote diplacement = 0.1 mm, normal to the crack plane
# Outputs the J-integral
# Author : Sunny Islam, 2017
# Abaqus version 6.14-1
#
# Run as script in Abaqus
#
#!/usr/bin/python
# -*- coding: utf-8 -*-
from part import *
from material import *
from section import *
from assembly import *
from step import *
from interaction import *
from load import *
from mesh import *
from optimization import *
from job import *
from sketch import *
from visualization import *
from connectorBehavior import *
from abaqus import *
from abaqusConstants import *
# importing time to delay printing of results
import time
# import math and numpy for basic operations
import numpy as np
import math
# some constant
f = 60.0
# parameters
b = 100.0
w = 100.0
n = 10
i = np.linspace(f, b, num=n)
j = np.linspace(f, w, num=n)
for x_1 in range(n):
for y_1 in range(n):
x = i[x_1]
y = j[y_1]
# create partioned sketch based on on size parameters
mdb.models['Model-1'].ConstrainedSketch(name='__profile__',
sheetSize=200.0)
mdb.models['Model-1'].sketches['__profile__'
].rectangle(point1=(0.0, 0.0), point2=(x, -y))
mdb.models['Model-1'].Part(dimensionality=TWO_D_PLANAR,
name='Part-1', type=DEFORMABLE_BODY)
mdb.models['Model-1'].parts['Part-1'
].BaseShell(sketch=mdb.models['Model-1'
].sketches['__profile__'])
del mdb.models['Model-1'].sketches['__profile__']
mdb.models['Model-1'].ConstrainedSketch(gridSpacing=5.83,
name='__profile__', sheetSize=233.23,
transform=mdb.models['Model-1'].parts['Part-1'
].MakeSketchTransform(sketchPlane=mdb.models['Model-1'
].parts['Part-1'].faces[0], sketchPlaneSide=SIDE1,
sketchOrientation=RIGHT, origin=(50.0, -30.0, 0.0)))
mdb.models['Model-1'].parts['Part-1'
].projectReferencesOntoSketch(filter=COPLANAR_EDGES,
sketch=mdb.models['Model-1'].sketches['__profile__'])
mdb.models['Model-1'].sketches['__profile__'
].sketchOptions.setValues(gridOrigin=(-50.0, 30.0))
mdb.models['Model-1'].sketches['__profile__'
].sketchOptions.setValues(gridAuto=OFF, gridSpacing=5.0)
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-50.0, 10.0), point2=(-40.0, 10.0))
mdb.models['Model-1'].sketches['__profile__'
].HorizontalConstraint(addUndoState=False,
entity=mdb.models['Model-1'].sketches['__profile__'
].geometry[6])
mdb.models['Model-1'].sketches['__profile__'
].PerpendicularConstraint(addUndoState=False,
entity1=mdb.models['Model-1'].sketches['__profile__'
].geometry[3], entity2=mdb.models['Model-1'
].sketches['__profile__'].geometry[6])
mdb.models['Model-1'].sketches['__profile__'
].CoincidentConstraint(addUndoState=False,
entity1=mdb.models['Model-1'].sketches['__profile__'
].vertices[4], entity2=mdb.models['Model-1'
].sketches['__profile__'].geometry[3])
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-40.0, 10.0), point2=(-40.0, -10.0))
mdb.models['Model-1'].sketches['__profile__'
].VerticalConstraint(addUndoState=False,
entity=mdb.models['Model-1'].sketches['__profile__'
].geometry[7])
mdb.models['Model-1'].sketches['__profile__'
].PerpendicularConstraint(addUndoState=False,
entity1=mdb.models['Model-1'].sketches['__profile__'
].geometry[6], entity2=mdb.models['Model-1'
].sketches['__profile__'].geometry[7])
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-40.0, -10.0), point2=(-50.0, -10.0))
mdb.models['Model-1'].sketches['__profile__'
].HorizontalConstraint(addUndoState=False,
entity=mdb.models['Model-1'].sketches['__profile__'
].geometry[8])
mdb.models['Model-1'].sketches['__profile__'
].PerpendicularConstraint(addUndoState=False,
entity1=mdb.models['Model-1'].sketches['__profile__'
].geometry[7], entity2=mdb.models['Model-1'
].sketches['__profile__'].geometry[8])
mdb.models['Model-1'].sketches['__profile__'
].CoincidentConstraint(addUndoState=False,
entity1=mdb.models['Model-1'].sketches['__profile__'
].vertices[7], entity2=mdb.models['Model-1'
].sketches['__profile__'].geometry[3])
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-40.0, 10.0), point2=(-20.0, 30.0))
mdb.models['Model-1'].sketches['__profile__'
].CoincidentConstraint(addUndoState=False,
entity1=mdb.models['Model-1'].sketches['__profile__'
].vertices[8], entity2=mdb.models['Model-1'
].sketches['__profile__'].geometry[2])
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-50.0, 0.0), point2=(0.0, 30.0))
mdb.models['Model-1'].sketches['__profile__'].undo()
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-50.0, 0.0), point2=(-50.0 + x, 0.0))
mdb.models['Model-1'].sketches['__profile__'
].HorizontalConstraint(addUndoState=False,
entity=mdb.models['Model-1'].sketches['__profile__'
].geometry[10])
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-20.0, 30.0), point2=(-70.0, 0.0))
mdb.models['Model-1'].sketches['__profile__'].undo()
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-20.0, 30.0), point2=(-20.0, -30.0 - y))
mdb.models['Model-1'].sketches['__profile__'
].VerticalConstraint(addUndoState=False,
entity=mdb.models['Model-1'].sketches['__profile__'
].geometry[11])
mdb.models['Model-1'].sketches['__profile__'
].Line(point1=(-20.0, 30.0 - y), point2=(-40.0, -10.0))
mdb.models['Model-1'].sketches['__profile__'
].CoincidentConstraint(entity1=mdb.models['Model-1'
].sketches['__profile__'].geometry[3],
entity2=mdb.models['Model-1'].sketches['__profile__'
].vertices[9])
mdb.models['Model-1'].sketches['__profile__'
].CoincidentConstraint(entity1=mdb.models['Model-1'
].sketches['__profile__'].geometry[5],
entity2=mdb.models['Model-1'].sketches['__profile__'
].vertices[10])
mdb.models['Model-1'].sketches['__profile__'
].CoincidentConstraint(entity1=mdb.models['Model-1'
].sketches['__profile__'].vertices[11],
entity2=mdb.models['Model-1'].sketches['__profile__'
].geometry[4])
mdb.models['Model-1'].parts['Part-1'
].PartitionFaceBySketch(faces=mdb.models['Model-1'
].parts['Part-1'].faces.getSequenceFromMask(('[#1 ]',
)), sketch=mdb.models['Model-1'].sketches['__profile__'
])
del mdb.models['Model-1'].sketches['__profile__']
# create material
mdb.models['Model-1'].Material(name='Material-1')
mdb.models['Model-1'].materials['Material-1'
].Elastic(table=((207000.0, 0.3), ))
# JC material model for plastic behaviour
mdb.models['Model-1'].materials['Material-1'
].Plastic(hardening=JOHNSON_COOK, table=((
615.8,
667.7,
0.255,
1.078,
0.0,
0.0,
), ))
mdb.models['Model-1'
].HomogeneousSolidSection(material='Material-1',
name='Section-1', thickness=None)
mdb.models['Model-1'].parts['Part-1'].SectionAssignment(
offset=0.0,
offsetField='',
offsetType=MIDDLE_SURFACE,
region=Region(faces=mdb.models['Model-1'].parts['Part-1'
].faces.getSequenceFromMask(mask=('[#ff ]',
))),
sectionName='Section-1',
thicknessAssignment=FROM_SECTION,
)
mdb.models['Model-1'].rootAssembly.DatumCsysByDefault(CARTESIAN)
mdb.models['Model-1'].rootAssembly.Instance(dependent=ON,
name='Part-1-1', part=mdb.models['Model-1'
].parts['Part-1'])
mdb.models['Model-1'].StaticStep(initialInc=0.1, maxInc=0.1,
name='Step-1', previous='Initial')
# define crack and J-integral output
mdb.models['Model-1'
].rootAssembly.engineeringFeatures.ContourIntegral(
collapsedElementAtTip=NONE,
crackFront=Region(vertices=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].vertices.getSequenceFromMask(mask=('[#100 ]'
, ))),
crackNormal=((0.0, 0.0, 0.0), (-1.0, 0.0, 0.0)),
crackTip=Region(vertices=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].vertices.getSequenceFromMask(mask=('[#100 ]'
, ))),
extensionDirectionMethod=CRACK_NORMAL,
midNodePosition=0.5,
name='Crack-1',
symmetric=ON,
)
# boundary conditions
mdb.models['Model-1'].XsymmBC(createStepName='Initial',
localCsys=None, name='BC-1',
region=Region(edges=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].edges.getSequenceFromMask(mask=('[#420 ]', ))))
mdb.models['Model-1'].DisplacementBC(
amplitude=UNSET,
createStepName='Initial',
distributionType=UNIFORM,
fieldName='',
localCsys=None,
name='BC-2',
region=Region(vertices=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].vertices.getSequenceFromMask(mask=('[#40 ]'
, ))),
u1=UNSET,
u2=SET,
ur3=UNSET,
)
# displacement is defined from the rectangle width
mdb.models['Model-1'].DisplacementBC(
amplitude=UNSET,
createStepName='Step-1',
distributionType=UNIFORM,
fieldName='',
fixed=OFF,
localCsys=None,
name='BC-3',
region=Region(edges=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].edges.getSequenceFromMask(mask=('[#808 ]',
))),
u1=0.1,
u2=UNSET,
ur3=UNSET,
)
mdb.models['Model-1'].HistoryOutputRequest(
contourIntegral='Crack-1',
createStepName='Step-1',
name='jIntegral',
numberOfContours=10,
rebar=EXCLUDE,
sectionPoints=DEFAULT,
frequency=LAST_INCREMENT,
)
mdb.models['Model-1'
].rootAssembly.makeIndependent(instances=(mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'], ))
mdb.models['Model-1'
].rootAssembly.setMeshControls(elemShape=QUAD,
regions=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].faces.getSequenceFromMask(('[#ef ]', )),
technique=STRUCTURED)
mdb.models['Model-1'
].rootAssembly.setMeshControls(elemShape=QUAD,
regions=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].faces.getSequenceFromMask(('[#10 ]', )),
technique=STRUCTURED)
mdb.models['Model-1'
].rootAssembly.setElementType(elemTypes=(ElemType(elemCode=CPE4,
elemLibrary=STANDARD, secondOrderAccuracy=OFF,
hourglassControl=DEFAULT, distortionControl=DEFAULT),
ElemType(elemCode=CPE3, elemLibrary=STANDARD)),
regions=(mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].faces.getSequenceFromMask(('[#ff ]', )), ))
# mesh seeds
mdb.models['Model-1'
].rootAssembly.seedEdgeByNumber(constraint=FINER,
edges=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].edges.getSequenceFromMask(('[#1feffa ]', )),
number=10)
mdb.models['Model-1'
].rootAssembly.seedEdgeByNumber(constraint=FINER,
edges=mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'
].edges.getSequenceFromMask(('[#1005 ]', )), number=30)
mdb.models['Model-1'
].rootAssembly.generateMesh(regions=(mdb.models['Model-1'
].rootAssembly.instances['Part-1-1'], ))
mdb.Job(
atTime=None,
contactPrint=OFF,
description='',
echoPrint=OFF,
explicitPrecision=SINGLE,
getMemoryFromAnalysis=True,
historyPrint=OFF,
memory=90,
memoryUnits=PERCENTAGE,
model='Model-1',
modelPrint=OFF,
multiprocessingMode=DEFAULT,
name=str(x_1) + str(y_1),
nodalOutputPrecision=SINGLE,
numCpus=1,
numGPUs=0,
queue=None,
resultsFormat=ODB,
scratch='',
type=ANALYSIS,
userSubroutine='',
waitHours=0,
waitMinutes=0,
)
mdb.jobs[str(x_1) + str(y_1)].submit(consistencyChecking=OFF)
# this is here to ensure your memory is still intact after the simulation batches
# change this to the average simulation time
time.sleep(60)