Python Scripting In ABAQUS [Example]

by Categories Python

I can provide you with a simple example of a Python script that interacts with Abaqus.

In this example, we will create a 2D finite element model, apply a boundary condition, and solve for the displacements and stresses.

from abaqus import *
from abaqusConstants import *
from caeModules import *

# Create a new model
myModel = mdb.Model(name='ExampleModel')

# Create a new part
myPart = myModel.Part(name='ExamplePart', dimensionality=TWO_D_PLANAR, type=DEFORMABLE_BODY)

# Create a rectangular plate
mySketch = myModel.ConstrainedSketch(name='PlateSketch', sheetSize=200.0)
mySketch.rectangle(point1=(0.0, 0.0), point2=(100.0, 50.0))
myPart.BaseShell(sketch=mySketch)

# Create a material
myMaterial = myModel.Material(name='ExampleMaterial')
myMaterial.Elastic(table=((200E9, 0.3),))

# Assign the material to the part
mySection = myModel.HomogeneousSolidSection(name='ExampleSection', material='ExampleMaterial')
myPart.SectionAssignment(sectionName='ExampleSection', region=(myPart.faces,))

# Mesh the part
myPart.generateMesh()

# Create an assembly
myAssembly = myModel.rootAssembly
myAssembly.Instance(name='ExampleInstance', part=myPart)

# Create a boundary condition
myAssembly.Set(name='FixedFace', faces=myAssembly.instances['ExampleInstance'].faces.findAt(((0.0, 0.0, 0.0),),))
myModel.EncastreBC(name='Fixed', createStepName='Initial', region=myAssembly.sets['FixedFace'])

# Create a step and apply a load
myModel.StaticStep(name='LoadStep', previous='Initial')
myAssembly.Set(name='AppliedLoadFace', faces=myAssembly.instances['ExampleInstance'].faces.findAt(((100.0, 25.0, 0.0),),))
myModel.SurfaceTraction(name='AppliedLoad', createStepName='LoadStep', region=myAssembly.sets['AppliedLoadFace'],
                        magnitude=1.0E6, directionVector=(0.0, 1.0, 0.0))

# Submit the job and wait for it to complete
myJob = mdb.Job(name='ExampleJob', model='ExampleModel')
myJob.submit()
myJob.waitForCompletion()

# Open the results database
myOdb = openOdb('ExampleJob.odb')

# Retrieve the displacement and stress field outputs
displacementField = myOdb.steps['LoadStep'].frames[-1].fieldOutputs['U']
stressField = myOdb.steps['LoadStep'].frames[-1].fieldOutputs['S']

# Print the displacement at a specific node
nodeLabel = 1  # Example node label
nodeDisplacement = displacementField.getSubset(region=myAssembly.instances['ExampleInstance'].nodes[nodeLabel])
print('Displacement at Node {}: {}'.format(nodeLabel, nodeDisplacement))

# Print the stress at a specific element
elementLabel = 1  # Example element label
elementStress = stressField.getSubset(region=myAssembly.instances['ExampleInstance'].elements[elementLabel])
print('Stress at Element {}: {}'.format(elementLabel, elementStress))

# Close the results database
myOdb.close()

Please note that this is a basic example, and you may need to modify it based on your specific requirements.

Additionally, you’ll need to have Abaqus installed and properly configured to run the script.

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  • Dmytro Iliushko

    I am a middle python software engineer with a bachelor's degree in Software Engineering from Kharkiv National Aerospace University. My expertise lies in Python, Django, Flask, Docker, REST API, Odoo development, relational databases, and web development. I am passionate about creating efficient and scalable software solutions that drive innovation in the industry.

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