Question: A composite beam is formed from two ( 1 0 m m 4 0 m m ) vertical steel plates bolted to a horizontal wooden

A composite beam is formed from two (10mm40mm) vertical steel plates bolted to a horizontal wooden board (20mm100mm).(Ew=10GPa&Es=200GPa ). Determine the maximum positive and negative bending moments that can be applied to the beam about a horizontal axis. The allowable normal stress in the steel is 130 MPa in tension and 175 MPa in compression, and the allowable normal stress in the wood is 6 MPa in tension and 12 MPa in compression.
(15 marks)
A composite beam is formed from two ( 1 0 m m 4 0

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