Problem 7.7. Beam with circular section under bending and torsion Consider a cantilevered beam of length L = 1 m with a circular cross-section of inner radius R, 45 mm and outer radius R. = 50 mm. The beam is subjected to a tip torque Q = 7 kNm and a tip transverse load P. Find the maximum allowable transverse load Pmax if the allowable stress for the material is allow = 450 MPa. Note: for a hollow circular section, H = H = E(RR)/4.