Prob. 6-128 6-129. A wood beam is reinforced with steel straps at its top and bottom as shown. Determine the maximum bending stress developed in the wood and steel if the beam is subjected to a bending moment of M = 5 kN·m. Sketch the stress distribution acting over the cross section. Take E-11 GPa, E = 200 GPa. 20 mm achieve their alge is said to b maximu to the be21 are 200 mm 300 mm -M=5kN-m 20 mm Prob. 6-129