What is Elastic fatigue ? Give its reason.

1.	What is Elastic fatigue ? Give its reason.
Answer» The temporary loss of elastic properties because of the action of repeated alternating deforming force is called elastic fatigue. It is due to this reason : (i) Bridges are declared unsafe after a long time of their use. (ii) Spring balances show wrong readings after they have been used for a long time. (iii) We are able to break the wire by repeated bending.

Answer»

The temporary loss of elastic properties because of the action of repeated alternating deforming force is called elastic fatigue.

It is due to this reason :

(i) Bridges are declared unsafe after a long time of their use.

(ii) Spring balances show wrong readings after they have been used for a long time.

(iii) We are able to break the wire by repeated bending.

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