When the stress is less than the yield stress, if the stress is removed, the material follows the same path on stress-strain curve and regains from the deformation.
But if stress goes beyond elastic limit, there is permanent deformation even after removal of stress.
I want to define this property for the Johnson Cook law 2.
I am observing that after deformation, there is no strain reduction even though stress reduces. It may be elastic or plastic but there should be some! There is none currently.
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