(Solved):   The composite beam is made of steel (A) bonded to brass (B) and has the cross section show ...

 

The composite beam is made of steel (A) bonded to brass (B) and has the cross section shown. If it is subjected to a moment of \( M=13 \mathrm{kN} . \mathrm{m} \), determine the maximum bending stress in the brass and steel. Also, what is the stress in each material at the seam where they are bonded together? Ebr \( =100 \mathrm{GPa} \). Est \( =200 \mathrm{GPa} \). What is the percent of the moment caused by the tensile force? Note: transform brass to steel \[ I=\frac{M C}{I} \]