For the plastic deformation, it is not necessary to have higher applied stress than the yield strength of the material.(a) True(b) FalseThe question was asked by my college director while I was bunking the class.Query is from Plastic Deformation and Yield Criteria in division Types of Die & Metal Forming Processes of Casting-Forming-Welding II

For the plastic deformation, it is not necessary to have higher applie

1.	For the plastic deformation, it is not necessary to have higher applied stress than the yield strength of the material.(a) True(b) FalseThe question was asked by my college director while I was bunking the class.Query is from Plastic Deformation and Yield Criteria in division Types of Die & Metal Forming Processes of Casting-Forming-Welding II
Answer» The correct CHOICE is (b) False To elaborate: In PLASTIC deformation of METAL, APPLIED stress is the main parameter which must be higher than the yield strength of the material and less than the fracture strength. The plastic deformation increases with the applied stresses when these stresses PRESENT in the middle of yield strength and fracture strength.

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