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Apropriate Material Model for Metal forming processes

Apropriate Material Model for Metal forming processes

Apropriate Material Model for Metal forming processes

(OP)
Hi All

Maybe my question also refers to some basics , but I was wondering , if in a metal forming process , I have both tension (first ) then compression , the material is low carbon steel , Usually I model it with a flow rule, till UTS , but since I see also some surfaces that are under more compression, during forging , they arrive to UTS, I don't know if I can trust these results, specially with a flow rule till UTS

1- How can I apply a damage model while I have had Bauschinger effect most probably ?

2- without application of Bauschinger Effect, at results, I might have the Yield stress in the Elements, but how to calculate the residual stress ?

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