Question: Suppose a 24-in.-long round bar is to support a load of 400 lb without any permanent deformation. Calculate the minimum diameter of the bar if

Suppose a 24-in.-long round bar is to support a load of 400 lb without any permanent deformation. Calculate the minimum diameter of the bar if it is made from
(a) AZ80A-T5 magnesium alloy and
(b) 6061-T6 aluminum alloy.
Calculate the weight of the bar and the approximate cost (based on pure Al and Mg) in each case.

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