TORSION

From the torsion equation, name the term represented by letter T

• torque

• temperature

• time

• length

From the torsion equation, name the term represented by letter J

• radius of curvature

• diameter

• polar moment inertia

• joule

From the torsion equation, name the term represented by letter L

• diameter

• radius

• depth

• length

Formula J for solid shaft is ;  $J=\frac{\pi D^4}{32}$  , true or false

• True

• False

Formula J for hollow shaft is;  $J=\frac{\pi\left(D^4-d^4\right)}{12}$  

• True

• False

From the torsion equation, name the term represented by letter R

• diameter

• radius of curvature

• length

• torque

From the torsion equation, name the term represented by letter  $\tau$  ;

• maximum shear stress

• maximum yield stress

• maximum strain

• maximum tensile strain

From the torsion equation, name the term represented by letter  $\theta$  

• angle of twist

• radius

• radius of curvature

• diameter

A 10 m solid steel shaft is subjected to a torque of 15kNm resulting an angle of twist of 4^o from its original position. Given G = 85 GPa. Calculate:

1)The maximum shearing stress developed.

A solid shaft with a 60mm diameter and 180mm length is subjected to a torque 180Nm. Calculate;

1)Polar moment of area for the shaft