On a typical stress-strain curve for a metal wire, the region between the yield point and the fractu

Question

On a typical stress-strain curve for a metal wire, the region between the yield point and the fracture point exhibits:

Professor PC Thomas Classes · Answer

Beyond the yield point, the material does not regain its original shape upon unloading. The extension is permanent, and this entire region leading up to the fracture point is known as the region of plastic deformation.