I have done a comparison between Isotropic hardening & Kinematic Hardening introducing the exact same values for the True Stress-True Strain curves.
As far as I have understood, on a unique increasing load with final release , both models should behave exactly the same ending both with the same Equivalent Plastic Strain.
The behavior should be the same for tension and for compression.
I have found that all 4 cases behave identical up to the point where the equivalent Plastic Strain starts to develop. It starts aproximately at the expected point according to the curve but final values disagree.
¿ I’m I doing something wrong.?
I would appreciate if someone could give some advice.
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