The cantilevered bar in the figure is made from a ductile material and is statically loaded…

The cantilevered bar in the figure is made from a ductile material and is statically loaded F, = 250 lbf and at A by obtaining the following information. with F, = Fz = 0, Analyze the stress situation in the small diameter at the shoulder (a) Determine the precise location of the critical stress element at the cross section at A. (b) S ketch the critical stress element and determine magnitudes and directions for all stresses acting on it. (Transverse shear may be neglected if you can justify this decision.) (c) For the critical stress element, determine the principal stresses and the maximum shear stress.