(Solved): The figure below shows the shaft of ABC. The shaft is solid and section AB has a diameter d = 150 mm ...

The figure below shows the shaft of ABC. The shaft is solid and section AB has a diameter d = 150 mm (A = 17.67x10-3 m2) and segment BC has diameter d = 100 mm (A = 7.85x10-3 m2). Two torques act on the shaft, i.e. 2T in point. B and T in point. C. There is also an axial force, P = 550 kN, in point. C. Find the maximum value of the torque T given that the principal stress must not exceed 100 MPa in the shaft ABC. Note values of Ip are given in the figure