Question: A simply supported composite beam 3 m long carries a uniformly distributed load of intensity q = 3.0 kN/m (see figure). The beam is constructed

A simply supported composite beam 3 m long carries a uniformly distributed load of intensity q = 3.0 kN/m (see figure). The beam is constructed of a wood member, 100 mm wide by 150 mm deep, reinforced on its lower side by a steel plate 8 mm thick and 100 mm wide.
Find the maximum bending stresses Ïƒw and Ïƒs in the wood and steel, respectively, due to the uniform load if the moduli of elasticity are Ew = 10 GPa for the wood and Es = 210 GPa for the steel.

q 3.0 kN/nm 150 mm 3 m 100 mm

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