Assistant Design Engineer Interview Question:

Please explain the torsion equation?

Submitted by: Muhammad

The torsional equation is, T/J = q/r = GӨ/L

Where,

T – Torsional moment (T is in N-mm)

J - Polar moment of inertia (J is in mm⁴)

q – Shear stress in the element (q is in N/mm²)

r - Distance of element from centre of shaft (r is in mm)

G- Modulus of Rigidity (G is in N/mm²)

Ө – Angle of twist (Ө is in radians)

L – Length of the shaft (L is in mm)
Submitted by: Muhammad