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Q1 / A composite beam is made of wood and reinforced with a steel strap located on its bottom side. It has the cross sectional area shown below. If the beam is subjected to a bending moment of M=4 KN.m determine the normal stress at point B, C and D. Take Ew=10 GPa and Es=210 Gpa. M 150 mm Wood 20 mm A Steel ck 150 mm Q2 / Draw S.F.D. and B.M.D 6 XN/m 20 KN B C מ זן 6 -2 mula2 Q3 / Consider the cantilever beam subjected to the concentrated load shown below. The cross section of the beam is of T-shape. Determine (1) the maximum shearing stress in the beam and also (2) determine the shearing stress 30 mm from the top surface of the beam of a section adjacent to the supporting wall.(3) determine the shearing stress 30 mm from the bottom surface of the beam of a section adjacent to the supporting wall 50 mun 50 IN 2 m B 125 mm Ti 30 mm 200 mm