Hi Maxwell Cáceres

So you mean that now you only have the nodal displacement?

If you know your element type and the shape functions, you can compute the strain field using the nodal displacement. But you need also the coordinates of the nodes in the deformed shape (COORD parameter in the Abaqus).

To read the odb file, you can use the following python code for the nodal displacements and the COORD of a set of nodes in “SetName”:

myOdb = openOdb(path = OdbFile)

o3 = session.openOdb(name=OdbFile)

session.viewports['Viewport: 1'].setValues(displayedObject=o3)

nodes=myOdb.rootAssembly.nodeSets[SetName]

framelen=len(myOdb.steps['Step-1'].frames)

U1_Fr=session.xyDataListFromField(odb=myOdb, outputPosition=NODAL, variable=(('U',NODAL, ((COMPONENT, 'U1'), )), ), nodeSets=(SetName, ))

U2_Fr=session.xyDataListFromField(odb=myOdb, outputPosition=NODAL, variable=(('U',NODAL, ((COMPONENT, 'U2'), )), ), nodeSets=(SetName, ))

U3_Fr=session.xyDataListFromField(odb=myOdb, outputPosition=NODAL, variable=(('U',NODAL, ((COMPONENT, 'U3'), )), ), nodeSets=(SetName, ))

COORD1_Fr=session.xyDataListFromField(odb=myOdb, outputPosition=NODAL, variable=(('COORD',NODAL, ((COMPONENT, 'COOR1'), )), ), nodeSets=(SetName, ))

COORD2_Fr=session.xyDataListFromField(odb=myOdb, outputPosition=NODAL, variable=(('COORD',NODAL, ((COMPONENT, 'COOR2'), )), ), nodeSets=(SetName, ))

COORD3_Fr=session.xyDataListFromField(odb=myOdb, outputPosition=NODAL, variable=(('COORD',NODAL, ((COMPONENT, 'COOR3'), )), ), nodeSets=(SetName, ))

Then you can write a python code to compute the strain field.

(But I personally prefer to re-do the simulation :)

Dear Cáceres,

As you may know, the total strain components(E) option is selected by default when you create a step, so if you deselect it manually, you should calculate the element displacement by accessing the ODB file, as our friend Mohammadreza Moeini said. However, as you mentioned that your analysis took about 36 hours, I assume that maybe there are a large number of elements in your model, so this method may cause some errors. I recommend you to rerun your job. But for accessing the ODB file by python scripting, there is a complete lecture in lesson 2 of this package: https://caeassistant.com/product/python-scripting-in-abaqus-part-2/.