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

MCQOPTIONS

1.	For the plastic deformation, it is not necessary to have higher applied stress than the yield strength of the material.
A.	True
B.	False
Answer» C.

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In the yield criteria of metal, von-mises criteria are also known as distortion energy theory.
The yield point is very important for controlling the various manufacturing processes.
In plastic deformation of metal, the metal strength decreases as the increase in its temperature.
For the plastic deformation, it is not necessary to have higher applied stress than the yield strength of the material.
The process of forming new grains in the material is known as re-crystallization.
Metal forming operations can only be performed when the material undergoes plastic deformation.
In crystalline materials, the plastic deformation occurs when the group of atoms or molecules slides past each other.
The fluids reveal its flow behaviour when it is subjected to normal compressive stresses.
Elastic deformation can disappear completely when the load is removed from the metal.
In plastic deformation of metal, the deformation is temporary and can regain its original shape.