B D192024 Pages:3

12 a) Based on the stress function approach, derive an expression for finding the
maximum shear stress on a shaft of elliptical cross section?

13 a) A frame is subjected to a load 2 as shown in figure. The length of each leg is L.
The frame has a constant flexural rigidity EI. If the effect of axial load is

neglected, find the deflection at point A due to applied load P?

b) State and explain Castigliano’s first and second theorem

14 a)

Using the principle of virtual work, find out the reactions at A and D

b) Explain Maxwell theorem

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