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J Plastic Calculation

Submitted by nsanteb on
Dear All:
 
I completed calculating my stress-intensity factors by  modifying the verification test case  in ANSYS 
I need to calculate the J-plastic values for  Ramberg-Osgood type material using isotropic hardening for various n values . 
Does ANSYS have a Ramberg-osgood material model built in ?
The only relevant benchmark codes that I can find in ANSYS help are : 

1. J integral value for centered crack plate with BISO material model 

2. J integral value for centered crack plate with elastic perfectly plastic material



I'm wondering which one of the above is relevant for  Ramberg-Osgood type material using isotropic hardening ? 
 
Any feedback is much appreciated .