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Unformatted text preview: of elasticity divided by the weight density. The text does not give a symbol to these quantities. Specific strength Sut i i 1 in . 2.85710 5 610 5 5.62510 5 = Specific stiffness E i i 1 in . 1.07110 8 1.0410 8 1.03110 8 = Steel Aluminum Titanium 2. Based on the results above, all three materials have the same specific stiffness but the aluminum has the largest specific strength. Aluminum for the aircraft wing spar is recommended. P 0219.mcd...
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- Spring '10
- Machine Design