First slide

Elastic behaviour of solids

Question

If x longitudinal strain is produced in a wire of Young's modulus Y, then energy stored in the material of the wire per unit volume is

Moderate

A

${Yx}^{2}$
B

$2 Y x^{2}$
C

$\frac{1}{2} Y^{2} x$
D

$\frac{1}{2} {Yx}^{2}$

Solution

Energy stored per unit volume $= \frac{1}{2} \times Stress \times Strain$
$= \frac{1}{2} \times Young's modulus \times {(Strain)}^{2} = \frac{1}{2} \times Y \times x^{2}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App