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Unformatted text preview: f (This result agrees with Eq. (3-48) of Example 3-9, Section 3.8.) f 5 T L A L B G ( L B I PA 1 L A I PB ) G f 2 2 I PA L A 1 I PB L B 5 T f 2 W 5 T f 2 T L A L B A C I PA I PB B f Problem 3.9-8 Derive a formula for the strain energy U of the cantilever bar shown in the figure. The bar has circular cross sections and length L . It is subjected to a distributed torque of intensity t per unit distance. The intensity varies linearly from t 5 0 at the free end to a maximum value t 5 t at the support. L t t A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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- Spring '08