A solid, round simply supported steel shaft is used as a beam with a span length of 700 mm. The shaft supports two concentrated loads of 3 kN each applied at the third points of the span.
Calculate the required shaft diameter if its deflection must not exceed 0.20 mm. Using the computed diameter, compute the maximum bending stress and shear stress and compare with allowable stresses of 165 MPa in bending and 100 MPa in shear. Use the formula method.