Hello
I am reading an abaqus odb which is solved for 2 time steps 'step1' and 'step2' and i want to read the output at every last frame of these steps. further, I have written python script to find change in dispacement. I have written this code which works fine to capture delta displacement
f1=odb.steps['step1'].frames[-1].fieldOutputs['U']
f2=odb.steps['step2'].frames[-1].fieldOutputs['U']
deltaf=f2-f1
nstep = odb.Step(name='dfield', description='user defined results', domain= TIME, timePeriod=0)
nframe = nstep.Frame(incrementNumber=0, frameValue=0.0)
nfield = nframe.FieldOutput(name='U', description='user disp',type=VECTOR)
nfield.addData(field=deltaf)
odb.save()
Now I want to do know change in vonMises stresses i.e i want to find out delta von-mises stress. I have written similar code but its not working.
f1=odb.steps['step1'].frames[-1].fieldOutputs['MISES'] this also gives error. Please help.
Mises is a member in the
Mises is a member in the fieldOutput of 'S'. So, the scripts look like this:
fieldS1 = step1.frames[-1].fieldOutputs['S']
fieldS2 = step2.frames[-1].fieldOutputs['S']
deltaS = fieldS2 - fieldS1 *everything under 'S' are subracted. you can use deltaS.values[0].__members__ to check the accessable member.
deltaValues = deltaS.values
deltaValues[0].mises **this will give you thedeltaMises.