Find the minimum shaft diameter for the system shown below using the distortion-energy theory.

Z (a) Find the minimum shaft diameter for the system shown below using the distortion-energy theory Consider that the bending and torsion effects dominate the loading in the shaft so that the other effects may be neglected. Use a safety factor of 1.5, and a material with a yield strength of Sy-193 MPa. The shaft is simply-supported by ball bearings (modeled as pin joints) at A and B. (b) Calculate the total deflection at D, AD = (y+zp)2, in terms of the modulus of elasticity E, and second moment of the cross sectional area I. 0.15m y A C 0.35m F-5kN rc=0.075m 0.25m rp=0.05m Fy-7.5kN B