Why yielding stress increase with strain hardening?

1.	Why yielding stress increase with strain hardening?
Answer» ANSWER: Materials behave elastically until the deforming force INCREASES beyond the elastic LIMIT, which is ALSO known as the yield stress. At that point, the material is permanently deformed and fails to RETURN to its original shape when the force is removed. This phenomenon is called plastic deformation. I guess this is helpful

Answer»

Materials behave elastically until the deforming force INCREASES beyond the elastic LIMIT, which is ALSO known as the yield stress. At that point, the material is permanently deformed and fails to RETURN to its original shape when the force is removed. This phenomenon is called plastic deformation.

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Why yielding stress increase with strain hardening?

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