Theory of Structures - Engineering

Q1:

A material is said to be perfectly elastic if

A it regains its original shape on removal of the load

B It regains its original shape partially on removal of the load

C it does not regain its original shape at all

D none of these.

ANS:A - it regains its original shape on removal of the load

As per Hook's law, stress/Strain is directly proportional to Young's modulus. So Stress is directly proportional to Strain.

This says if stress increases strain also increases within the elastic limit.