The simply supported beam illustrated below is made of 10 mm thick plywood sheets, attached (e.g....

  

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The simply supported beam illustrated below is made of 10 mm thick plywood sheets, attached (e.g. glued) together to form a 'Box'-shaped cross-section. Both flanges have the same width, b. (a) Draw the shear force and bending moment diagrams for the beam in the space reserved below, indicating the values at A, B, C, D and E, as well as any potential local maxima and minima. (b) Determine the width of the beam, b, such that it can safely carry the loads applied. The plywood has a failure stress of 40 MPa in both tension and compression and the required load factor for wood in flexure is 3.0. the fabrication shop can cut the plywood sheets in multiples of 10 mm. (Answer: b-120 mm) Pc=2 kN 6 kN/m 3 kN/m E B 1.2 m- 0.6 m0.3 m 0.6 m Cross-Section of Beam The simply supported beam illustrated below is made of 10 mm thick plywood sheets, attached (e.g. glued) together to form a 'Box'-shaped cross-section. Both flanges have the same width, b. (a) Draw the shear force and bending moment diagrams for the beam in the space reserved below, indicating the values at A, B, C, D and E, as well as any potential local maxima and minima. (b) Determine the width of the beam, b, such that it can safely carry the loads applied. The plywood has a failure stress of 40 MPa in both tension and compression and the required load factor for wood in flexure is 3.0. the fabrication shop can cut the plywood sheets in multiples of 10 mm. (Answer: b-120 mm) Pc=2 kN 6 kN/m 3 kN/m E B 1.2 m- 0.6 m0.3 m 0.6 m Cross-Section of Beam