Question: A copper strip ( E = 1 0 0 GPa and an aluminum strip ( E = 7 5 GPa are bonded together to form

A copper strip (E=100GPa and an aluminum strip (E=75GPa are bonded together to form the composite beam shown. Knowing that the beam is bent about its horizontal centroidal axis by a moment M=50N-m, that produces a tensile stress on the bottom surface and a compressive stress on the top surface. Determine the maximum stress in (a) the aluminum strip, (b) the copper strip.
Fig: Q3
A copper strip ( E = 1 0 0 GPa and an aluminum

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