If Mz = 38,600 lb-ft, find the magnitude of the bending stre…

If Mz = 38,600 lb-ft, find the magnitude of the bending stress at a point H. For the beam cross section, assume b = 8.750 in. c = 3.500 in. d = 6.125 in.t = 0.875 in. The centroid of the cross section is located 3.250 in. above the bottom surface of the beam. The moment of inertia about the z axis is 107.2992 in.4.

A composite beam consists of a Southern pine [E = 9.0 GPa] t…

A composite beam consists of a Southern pine timber that is reinforced on its lower surface by a steel plate. Assume the following dimensions:b1 = 125 mmd = 250 mmb2 = 75 mmt = 12 mmCalculate the distance to the centroid of the transformed section from the bottom surface of the steel plate.