A wood beam with cross-sectional dimensions 200 mm x 300 mm is reinforced on its sides by steel plates 12 mm thick (see

[answerhappygod]

A Wood Beam With Cross Sectional Dimensions 200 Mm X 300 Mm Is Reinforced On Its Sides By Steel Plates 12 Mm Thick See 1 (40.8 KiB) Viewed 28 times

A wood beam with cross-sectional dimensions 200 mm x 300 mm is reinforced on its sides by steel plates 12 mm thick (see figure). 12 mm 200 mm (a) 12 mm 12 mm 12 mm mm -300 mm (b) Ⓡ The moduli of elasticity for the steel and wood are E = 190 GPa and E= 11 GPa, respectively. Also, the corresponding allowable stresses are = 107 MPa and = 5.8 MPa. (a) Calculate the maximum permissible bending moment Mmax (in kN m) when the beam is bent about the z-axis. (Enter the magnitude.) kN m (b) Repeat part (a) if the beam is now bent about its y-axis. kN.m (c) Find the required thickness (in mm) of the steel plates on the beam bent about the y-axis so that Mmax is the same for both beam orientations.