SolutiontoQuiz3

SolutiontoQuiz3 - 2 what is the most important assumption...

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1 EMA 3702 Mechanics of Materials Pop-up Quiz #3 Date: 9/16/11 Name: ________________________________ Panther ID:__________________________________ 1. If the formula to calculate the total angle of twist of a straight shaft is TL GJ where T = applied torque L = length of the shaft G = shear modulus J = polar moment of inertia Write the formula to calculate the total twist angle of a tapered shaft, as shown in the figure. You don’t have to solve the problem. [2 pts] Ans : 0 L Tdx GJ assuming the length direction is x-direction.

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Unformatted text preview: 2. what is the most important assumption in the beam theory, especially for a beam subjected to pure bending? [2 pts.] Ans. The transverse plane remains as plane. 3. The solid spindle AB has a diameter d S = 1.75 in. and is made of steel with G = 11.2 x 10 6 psi and all = 12 ksi, while sleeve CD is made of a brass with G = 5.6 x 10 6 psi and all = 7 ksi. Determine the maximum torque T the spindle can take. [6 pts.] n H 2...
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SolutiontoQuiz3 - 2 what is the most important assumption...

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