A solid section axle for a heavy vehicle is 2.25 m long and 175 mm diameter. The axle is suspended from the body at points 1.5 m apart and each wheel carries a load of 140 kN.
The modulus of elasticity of the material is 208 GPa. Plot the shear force and bending moment diagrams and determine the maximum stress due to bending, the factor of safety in operation if the UTS of the material is 500 MPa, and the value radius of curvature between the suspension points.