A rigid frame ABC is formed by welding two steel pipes at B (see figure). Each pipe has cross-sectional area A = 11.31 ×103 mm2 , moment of inertia I = 46.37 × 106 mm4 , and outside diameter d= 200 mm.
Find the maximum tensile and compressive stresses σt and σc, respectively, in the frame due to the load P= 8.0 kN if L= H = 1.4 m.