(Solved): (a) What are the basic assumptions involved in the Saint-Venant formulation of torsional analysis? ( ...

(a) What are the basic assumptions involved in the Saint-Venant formulation of torsional analysis? (b) Find the rate of twist of a uniform bar of elliptical cross section subjected to a uniform torsion

. (c) According to the Bernoulli-Euler formulation of a simple beam, shear stresses all vanish. How can we find the shear stress distribution in case shear forces are present?