A bar is 4 m long and has a diameter of 30 mm. Determine
Chapter 14, Problem 14-42(choose chapter or problem)
A bar is 4 m long and has a diameter of 30 mm. Determine the total amount of elastic energy that it can absorb from an impact loading if (a) it is made of steel for which \(E_{\mathrm{st}}=200 \mathrm{GPa}, \sigma_{Y}=800 \mathrm{MPa}\), and (b) it is made from an aluminum alloy for which\(E_{\mathrm{al}}=70 \mathrm{GPa}\), \(\sigma_{Y}=405 \mathrm{MPa}\).
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