- #1

#### Confusedbiomedeng

## Homework Statement

A specimen tested in a simple torsion testing machine , the specimen was 12.5mm in diameter and the angles were read over a gauge length of 0.75m Determine the modulus of rigidity of the material taking the torque T as 4.5Nm and the angle of twist as 4.0 degrees

## Homework Equations

T/J=τMax/R=Gθ\L

## The Attempt at a Solution

J=∏(0.025)

^{4}/32

J=3.8349x10^-8

4.0degress=0.0698132

4.0degress=0.0698132

4.5/3.8349x10^-8=G(0.0698132)/0.75

=>G=126x10^7

Wondering if this looks correct ??

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