The structure shown in Fig. Q2 comprises of two solid steel rods of diameter 90 mm, AB and CD, under actions of two forces shown. Modulus of elasticity of the rod material is 200 GPa and yield strength is 250 MPa. By ignoring the shear stress caused by the transverse shear force,
(a) Obtain the initial stress element and compute the principal stresses and also maximum shearing stress.
(b) Assess the factor of safety of the structure with respect to the point A under the action of the loads based on von Mises and Tresca failure criteria, respectively.
