Question: The internal loadings at a critical section along the D mm diameter aluminium shaft are torque and bending moment. The applied torque are three times

The internal loadings at a critical section along the D mm diameter aluminium shaft are torque and bending moment. The applied torque are three times the amount of the applied bending moment. If the yield points for tension and shear are σY = 270 MPa and τY = 135 MPa, respectively, and safety factor of b is applied, determine the required bending moment and torque using Tresca and von Mises theories of elastic failure.

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