Implementation of Isotropic, Kinematic & Combined Hardening laws in Ansys 11.0

Hi Everyone,

I'm analysing the Edge waviness which is caused in the sheet metal when it is undergoing the electrolytic coating process (zinc galvanising plant). i.e. there is waviness (shakes) in one edge side of the sheet metal.

In this process the sheet metal has to go a set of conductor rollers, electrolytic solution and support rollers, where the sheet metal is been loaded when it comes in contact with the roller and unloaded when it moving away from the roller. i.e. it has to undergo stretching, bending and cyclic hardening behavior due to loading & unloading.

I built the model in Ansys using Contact and target elements and for the sheet metal I used Shell elements. And the axes of the rollers are exactly parallel.

I suspect the stress distribution should be more on edge of strip according the kinematic hardening i.e. due to loading & unloading

So I implemented Isotropic hardening case in my Test model 1 like below, which is the stress strain curve of material with Isotropic hardening behavior.

!!Material Properties - Stress Strain Curve with Isotropic Hardening
TB,PLAS,1,1,39,MISO
TBTEMP,0
TBPT,,0.0000E+00,1.3410E+02
TBPT,,2.0000E-03,1.4900E+02
TBPT,,1.0000E-02,1.7541E+02
TBPT,,2.0000E-02........
...........................
...........................
................,3.1942E+02
TBPT,,1.4000E-01,3.2564E+02
TBPT,,1.5000E-01,3.3152E+02
TBPT,,1.6000E-01,3.3710E+02
TBPT,,1.7000E-01,3.4239E+02

And I got the stress distribution are even throughout the sheet metal due to Isotropic conditions, which is correct.

But I implemented Kinematic hardening case in my Test model 2 like below, which  is the stress strain curve of material with Kinematic hardening behavior.

!!Material Properties - Stress Strain Curve with Kinematic Hardening
TB,PLAS,1,1,19,KINH
TBTEMP,0
TBPT,,0.0000E+00,1.3410E+02
TBPT,,2.0000E-03,1.4900E+02
TBPT,,1.0000E-02,1.7541E+02
TBPT,,2.0000E-02........
...........................
...........................
................,3.1942E+02
TBPT,,1.4000E-01,3.2564E+02
TBPT,,1.5000E-01,3.3152E+02
TBPT,,1.6000E-01,3.3710E+02
TBPT,,1.7000E-01,3.4239E+02

But again stress distribution are even, which should not be in the case of kinematic hardening.

Questions:
1) Whether condition which I used for kinematic hardening for Ansys is ok or something has to b updated?
2) How to implement the combined hardening case i.e chaboche Model in Ansys, but the parameters which is has to given in ansys for chaboche model like c2, c3... How to calculate those parameters?
 
I have also attached picture of the test model for an idea of the model.