The distributed loading is supported by the three suspender bars. AB and EF are made of
Chapter 4, Problem 4-61(choose chapter or problem)
The distributed loading is supported by the three suspender bars. AB and EF are made of aluminum and CD is made of steel. If each bar has a cross-sectional area of \(450 \mathrm{\ mm}^{2}\), determine the maximum intensity of the distributed loading so that an allowable stress of \(\left(\sigma_{\text {allow }}\right)_{\mathrm{st}}=180 \mathrm{\ MPa}\) in the steel and \(\left(\sigma_{\text {allow }}\right)_{\mathrm{al}}=94 \mathrm{\ MPa}\) in the aluminum is not exceeded. \(E_{\mathrm{st}}=200 \mathrm{\ GPa}, E_{\mathrm{al}}=70\) GPa. Assume ACE is rigid.
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