Theory of Structures - Engineering

Q1:

A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is

A

B

C

D

ANS:C -

The maximum bending stress=32M/πD^3.
The maximum shear stress=16T/πD^3.
Max.bending stress/max.shear stress=32M/πD63 *πD^3/16t.
=2M/T => answer.