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Q4. A steel axle 150 mm in diameter and 2.4m long is supported in symmetrically placed bearing 1.6 m apart. There is an upward load of 180 kN at each end of axle.

(a) Sketch the Shear force and Bending Moment diagram. (6)

(b) Calculate each of the following:

(i) The maximum bending stress in the axle. (6)

(ii) The radius of curvature of the axle. (6)

Note:

Modules of elasticity for steel = 208 GN/m².