Question

Consider a stepped shaft subjected to a twisting moment applied at B as shown in the figure. Assume shear modulus, G = 77 GPa. The angle of twist at C (in degree) is

• A. 0.2368

Answer 1

The correct option is A 0.2368

${\theta }_C={\theta }_B=\frac{TL}{GJ}=\frac{10\times {10}^3\times 500\times 32}{\pi \times (20{)}^4\times 77\times {10}^3}$

$=4.1338946\times {10}^{-3}radian$

$=4.134\times {10}^{-3}\times \frac{180}{11}={0.2368}^{\circ }$