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a) A shaft of square section of outer side 55mm and inner side 50mm is subjected (10)
to a twisting moment such that the maximum shear stress developed is 2501/1172. What
is the torque acting on the shaft and what is the angular twist if the shaft is 1.6 m long
and G=70000N/mm?

a) Explain membrane analogy (4) b) What is meant by warping function? (3)
Define the term shear flow. (3)

A hollow thin wall torsion member has two compartments with cross sectional (10)
dimensions as given in figure. The material is an aluminium alloy having G=26GPa.
Determine the torque if the maximum shear stress 15 64 0.

KKK KKK

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