Question

A shaft of 50 mm diameter and 0.7 m long is subjected to a torque of 1200 Nm. Calculate the shear stress.

• A. 33.3 МРа
• B. 67.7 МРа
• C. 93.2 МРа
• D. 48.9 MPa

Answer 1

Answer:

D. 48.9 MPa

Given d = 50 mm, L = 0.7m T = 1200 N-m. $\tau_{max} = \frac {16T}{\pi d^ 3}=\frac{16\times 1200 \times 1000}{\pi \times 50 ^ 3} = 48.9MPa$