gxi_stiffplate_caemodel.py
#
# Getting Started with Abaqus: Interactive Edition
#
# Script for stiffened plate example
#
from abaqus import *
from abaqusConstants import *
session.viewports['Viewport: 1'].makeCurrent()
session.viewports['Viewport: 1'].maximize()
session.journalOptions.setValues(replayGeometry=COORDINATE,
recoverGeometry=COORDINATE)
from caeModules import *
from driverUtils import executeOnCaeStartup
executeOnCaeStartup()
Mdb()
s = mdb.models['Model-1'].ConstrainedSketch(name='__profile__', sheetSize=5.0)
g, v, d, c = s.geometry, s.vertices, s.dimensions, s.constraints
s.setPrimaryObject(option=STANDALONE)
s.Line(point1=(-0.65, 0.075), point2=(0.725000000046566, 0.075))
s.HorizontalConstraint(entity=g.findAt((0.0375, 0.075)), addUndoState=False)
s.Line(point1=(-0.325, 0.075), point2=(-0.325, 0.225000000046566))
s.VerticalConstraint(entity=g.findAt((-0.325, 0.15)), addUndoState=False)
s.PerpendicularConstraint(entity1=g.findAt((0.0375, 0.075)), entity2=g.findAt(
(-0.325, 0.15)), addUndoState=False)
s.CoincidentConstraint(entity1=v.findAt((-0.325, 0.075)), entity2=g.findAt((
0.0375, 0.075)), addUndoState=False)
s.Line(point1=(0.15, 0.075), point2=(0.15, 0.25))
s.VerticalConstraint(entity=g.findAt((0.15, 0.1625)), addUndoState=False)
s.PerpendicularConstraint(entity1=g.findAt((0.0375, 0.075)), entity2=g.findAt(
(0.15, 0.1625)), addUndoState=False)
s.CoincidentConstraint(entity1=v.findAt((0.15, 0.075)), entity2=g.findAt((
0.0375, 0.075)), addUndoState=False)
s.Line(point1=(0.55, 0.075), point2=(0.55, 0.25))
s.VerticalConstraint(entity=g.findAt((0.55, 0.1625)), addUndoState=False)
s.PerpendicularConstraint(entity1=g.findAt((0.0375, 0.075)), entity2=g.findAt(
(0.55, 0.1625)), addUndoState=False)
s.CoincidentConstraint(entity1=v.findAt((0.55, 0.075)), entity2=g.findAt((
0.0375, 0.075)), addUndoState=False)
s.EqualLengthConstraint(entity1=g.findAt((-0.325, 0.15)), entity2=g.findAt((
0.15, 0.1625)))
s.EqualLengthConstraint(entity1=g.findAt((0.15, 0.15625)), entity2=g.findAt((
0.55, 0.1625)), addUndoState=False)
s.ObliqueDimension(vertex1=v.findAt((-0.325, 0.075)), vertex2=v.findAt((
-0.325, 0.241667)), textPoint=(-0.427163749933243, 0.182814970612526),
value=0.1)
s.breakCurve(curve1=g.findAt((0.0375, 0.108333)), point1=(-0.48579403758049,
0.107456132769585), curve2=g.findAt((-0.325, 0.158333)), point2=(
-0.323862671852112, 0.168859630823135))
s.breakCurve(curve1=g.findAt((0.2, 0.108333)), point1=(-0.0753818303346634,
0.118620403110981), curve2=g.findAt((0.15, 0.158333)), point2=(
0.145179837942123, 0.166068568825722))
s.breakCurve(curve1=g.findAt((0.4375, 0.108333)), point1=(0.295943558216095,
0.118620403110981), curve2=g.findAt((0.55, 0.158333)), point2=(
0.54442435503006, 0.180023908615112))
s.HorizontalDimension(vertex1=v.findAt((-0.65, 0.108333)), vertex2=v.findAt((
0.725, 0.108333)), textPoint=(0.667268872261047, -0.0990829318761826),
value=2.0)
session.viewports['Viewport: 1'].view.fitView()
s.EqualLengthConstraint(entity1=g.findAt((-0.8, 0.108333)), entity2=g.findAt((
-0.0875, 0.108333)))
s.EqualLengthConstraint(entity1=g.findAt((-0.117187, 0.108333)),
entity2=g.findAt((0.379687, 0.108333)), addUndoState=False)
s.EqualLengthConstraint(entity1=g.findAt((0.360156, 0.108333)),
entity2=g.findAt((0.824219, 0.108333)), addUndoState=False)
session.viewports['Viewport: 1'].view.fitView()
s.move(vector=(-0.0791193181879034, -0.108333333341094), objectList=(g.findAt(
(-0.420881, 0.158333)), g.findAt((0.079119, 0.158333)), g.findAt((0.579119,
0.158333)), g.findAt((-0.670881, 0.108333)), g.findAt((-0.170881,
0.108333)), g.findAt((0.329119, 0.108333)), g.findAt((0.829119,
0.108333))))
p = mdb.models['Model-1'].Part(name='Plate', dimensionality=THREE_D,
type=DEFORMABLE_BODY)
p = mdb.models['Model-1'].parts['Plate']
p.BaseShellExtrude(sketch=s, depth=2.0)
s.unsetPrimaryObject()
p = mdb.models['Model-1'].parts['Plate']
session.viewports['Viewport: 1'].setValues(displayedObject=p)
del mdb.models['Model-1'].sketches['__profile__']
session.viewports['Viewport: 1'].setValues(displayedObject=p)
session.viewports['Viewport: 1'].partDisplay.setValues(renderStyle=SHADED)
mdb.models['Model-1'].Material('Steel')
mdb.models['Model-1'].materials['Steel'].Density(table=((7800.0, ), ))
mdb.models['Model-1'].materials['Steel'].Elastic(table=((210.0E9, 0.3), ))
mdb.models['Model-1'].materials['Steel'].Plastic(table=((300.0E6, 0.0),
(350.0E6, 0.025), (375.0E6, 0.1), (394.0E6, 0.2), (400.0E6, 0.35)))
mdb.models['Model-1'].HomogeneousShellSection(name='PlateSection',
preIntegrate=OFF, material='Steel', thickness=0.025,
poissonDefinition=DEFAULT, temperature=GRADIENT,
integrationRule=SIMPSON, numIntPts=5)
mdb.models['Model-1'].HomogeneousShellSection(name='StiffSection',
preIntegrate=OFF, material='Steel', thickness=0.0125,
poissonDefinition=DEFAULT, temperature=GRADIENT,
integrationRule=SIMPSON, numIntPts=5)
f = p.faces
faces = f.findAt(((-0.833333, 0.0, 1.333333), ),
((-0.333333, 0.0, 1.333333), ),
((0.166667, 0.0, 1.333333), ),
((0.666667, 0.0, 1.333333), ))
region =(None, None, faces, None)
p.SectionAssignment(region=region, sectionName='PlateSection', offset=-0.5)
faces = f.findAt(((-0.5, 0.033333, 1.333333), ),
((0.5, 0.033333, 1.333333), ),
((0.0, 0.033333, 1.333333), ))
region =(None, None, faces, None)
p.SectionAssignment(region=region, sectionName='StiffSection')
a = mdb.models['Model-1'].rootAssembly
session.viewports['Viewport: 1'].setValues(displayedObject=a)
a.DatumCsysByDefault(CARTESIAN)
a.Instance(name='Plate-1', part=p, dependent=ON)
session.viewports['Viewport: 1'].assemblyDisplay.setValues(renderStyle=SHADED)
p = mdb.models['Model-1'].parts['Plate']
e = p.edges
edges =(e.findAt(coordinates=(0.0, 0.0, 1.5)), )
p.PartitionEdgeByParam(edges=edges, parameter=0.5)
v = a.instances['Plate-1'].vertices
verts = v.findAt(((0.0, 0.0, 1.0), ))
a.Set(vertices=verts, name='Center')
e = a.instances['Plate-1'].edges
edges = e.findAt(((-0.875, 0.0, 2.0), ), ((-0.375, 0.0, 2.0), ), ((0.125,
0.0, 2.0), ), ((0.625, 0.0, 2.0), ), ((1.0, 0.0, 1.5), ), ((0.875, 0.0,
0.0), ), ((0.375, 0.0, 0.0), ), ((-0.125, 0.0, 0.0), ), ((-0.625, 0.0,
0.0), ), ((-1.0, 0.0, 1.5), ))
a.Set(edges=edges, name='Edge')
session.viewports['Viewport: 1'].assemblyDisplay.setValues(loads=OFF, bcs=OFF,
predefinedFields=OFF)
mdb.models['Model-1'].ExplicitDynamicsStep(name='Blast', previous='Initial',
description='Apply blast loading', timePeriod=0.05, adiabatic=OFF,
timeIncrementationMethod=AUTOMATIC_GLOBAL, scaleFactor=1,
maxIncrement=None, massScaling=PREVIOUS_STEP, linearBulkViscosity=0.06,
quadBulkViscosity=1.2)
regionDef=a.sets['Center']
mdb.models['Model-1'].steps['Blast'].Monitor(dof=2, node=regionDef)
mdb.models['Model-1'].fieldOutputRequests['F-Output-1'].setValues(
numIntervals=25)
mdb.models['Model-1'].historyOutputRequests['H-Output-1'].setValues(
numIntervals=500)
regionDef=mdb.models['Model-1'].rootAssembly.sets['Center']
mdb.models['Model-1'].HistoryOutputRequest(name='Center-U2',
createStepName='Blast', variables=('U2', ), numIntervals=500,
region=regionDef)
session.viewports['Viewport: 1'].assemblyDisplay.setValues(loads=ON, bcs=ON,
predefinedFields=ON)
region = a.sets['Edge']
mdb.models['Model-1'].EncastreBC(name='Fix edges', createStepName='Initial',
region=region)
mdb.models['Model-1'].TabularAmplitude(name='Blast', timeSpan=STEP,
smooth=0.25, data=((0.0, 0.0), (0.001, 7.0E5), (0.01, 7.0E5),
(0.02, 0.0), (0.05, 0.0)))
s = a.instances['Plate-1'].faces
side1Faces = s.findAt(((-0.833333333333333, 0.0, 1.33333333333333), ),
((-0.166666666666667, 0.0, 1.66666666666667), ),
((0.166666666666667, 0.0, 1.66666666666667), ),
((0.666666666666667, 0.0, 1.33333333333333), ))
region = regionToolset.Region(side1Faces=side1Faces)
mdb.models['Model-1'].Pressure(name='Pressure load', createStepName='Blast',
region=region, magnitude=1.0, amplitude='Blast')
session.viewports['Viewport: 1'].assemblyDisplay.setValues(mesh=ON)
session.viewports['Viewport: 1'].assemblyDisplay.meshOptions.setValues(
meshTechnique=ON)
p.seedPart(size=0.1)
e = p.edges
edges =(e.findAt(coordinates=(-0.5, 0.025, 2.0)), e.findAt(coordinates=(
0.0, 0.025, 2.0)), e.findAt(coordinates=(0.5, 0.025, 2.0)), e.findAt(
coordinates=(-0.5, 0.075, 0.0)), e.findAt(coordinates=(0.0, 0.075,
0.0)), e.findAt(coordinates=(0.5, 0.075, 0.0)))
p.seedEdgeByNumber(edges=edges, number=2)
elemType1 = mesh.ElemType(elemCode=S4R, elemLibrary=EXPLICIT,
hourglassControl=RELAX_STIFFNESS)
elemType2 = mesh.ElemType(elemCode=S3, elemLibrary=EXPLICIT)
f = p.faces
faces = f
regions =(None, None, faces, None)
p.setElementType(regions=regions, elemTypes=(elemType1, elemType2))
pickedRegions = f
p.setMeshControls(regions=pickedRegions, elemShape=QUAD, algorithm=MEDIAL_AXIS)
p.generateMesh()
session.viewports['Viewport: 1'].assemblyDisplay.setValues(renderStyle=SHADED)
mdb.Job(name='BlastLoad', model='Model-1')
mdb.jobs['BlastLoad'].setValues(description='Blast load on a flat plate with stiffeners: S4R elements (20x20 mesh) Normal stiffeners (20x2)')
a.regenerate()
mdb.saveAs('StiffPlate')
