A thin-walled composite tube having an outside diameter of (48 mathrm{~mm}) is made by securely bonding an

Question:

A thin-walled composite tube having an outside diameter of $48 \mathrm{~mm}$ is made by securely bonding an aluminum tube inside a steel tube, as shown in Figure 7.10. Determine the maximum allowable bending moment, $M$, that the composite tube can withstand without exceeding the yield stress of either the steel or the aluminum. The tube properties are

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