I have to model cyclic plasticity in ABAQUS. The method to use ( this is as per ASME Boiler and Pressure Vessel code) involves only a single loading ( rather the load range has o be applied) and using a stabilized cyclic stress strain data expresssed in Ramberg Osgood format. The parameters for Ramberg Osgood are specified in the equation to be used fpr stabilized cyclic stress strain curve.

 Implementing the same in ABAQUS, gives me the following possibilities :

1) Hardening type Isotropic-which I believe should not be used with cyclic loading.

Dear All,

I am analyzing a steel pressure vessel with autofretage effect in ANSYS. This effect brings the vessel steel fully plastic in the first load step.After the remval of the load in the second step,a permant strain and residual stress remains in the vessel.The residual stress develops compressive stress in the vessel.

As the material has Bauschinger effect,thus the yield in compression is less than in tensiion. A bilinear kinematic hardening material model is used. This  gives accurate results for the loading step but gives higher residual stress in unloading step because of not taking the Bauscinger Effect.

So Is there any material model which can be used for this problem.your help is required.