Question: has a circular cross section of 400mm the beam is...

Has a circular cross section of 400mm. the beam is also subject to twisting torque of 500kN*m.
1) Sketch the shear and bending moment diagrams. determine the maximum bending stress and the location along the axis of the beam.
2) of the beam is also subject to a compressive force of 500kN, determine the maximum normal stress at the point of maximum bending stress.
3) Determine the direct shear stress due to torsion in the beam.
4) Using the maximum shear stress theory of failure, select amateur that will be safe for use of the load is a cyclic load.