6-52. The beam is made from three boards nailed together as shown. If the moment acting on the cross section is M = 600 Nm, determine the maximum bending stress in the beam. Sketch a three-dimensional view of the stress distribution and cover the cross section.
653. The beam is made from three boards nailed together as shown. If the moment acting on the cross section is M = 600 Nm, determine the resultant force the bending stress produces on the top board.
25 mm
150 mm
20 mm
200 mm M = 600 Nm
20 mm