At a critical point in a loaded ASTM-A36 structural steel bracket, the plane stresses ha...

At a critical point in a loaded ASTM-A36 structural steel bracket, the plane stresses have the magnitudes and directions depicted on element A in Fig. P4.3. Calculate whether the loadings will cause the shaft to fail, based on a safety factor of n = 1.5, applying (a) the maximum shear stress theory; (b) the maximum energy of distortion theory.