Hello,
I need to extract Mises equivalent stress in Abaqus to calculate triaxiality in my model. For extracting I used:
s1f23_s = session.odbs['C:/temp/BBC6.odb'].steps['static'].frames[23].fieldOutputs['S']
but it is whole stress tensor while I need to extract Mises equivalent stress as a scalar. What can I do?
Thank you in advance.
you can calculate the mises equivalent stress from the stress tensor inside your script and then store it for further use.
Mayank thanks for your reply. But how can I extract each element of the matrix. For example S11,...
Possible approach can be found at p.422 of the book G.Puri. Python Scripts for Abaqus.
"s1f23_s.values" variable will have Cauchy stress components in all integration point. you have to store all the data by creating a loop over number of integration point.
for reference I have attached a python script which will store stress component in "IP_Strs" variable name. you can calculate any stress measure from here.
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