Problem 3 The shaft consisting of steel and aluminum segments carries the torque T and 2T. Find the largest allowable value of T if the working shear stresses are 14,000 psi for steel and 7500 for aluminum, and the angle of rotation at the free end must not exceed 8º. Use G = 12 x 106 psi for steel and G = 4 x 106 psi for aluminum. ANS: T=4970 lb-in Aluminum 1.5 in.- 2T 00 Steel 2 in. T 2 ft 3 ft

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Problem 3
The shaft consisting of steel and aluminum
segments carries the torque T and 2T. Find the
largest allowable value of T if the working shear
stresses are 14,000 psi for steel and 7500 for
aluminum, and the angle of rotation at the free
end must not exceed 8º. Use G = 12 x 106 psi for
steel and G = 4 x 106 psi for aluminum.
ANS: T = 4970 lb-in
Aluminum
1.5 in.-
2T
CHO
Steel
2 in. →
T
2 ft
3 ft
Transcribed Image Text:Problem 3 The shaft consisting of steel and aluminum segments carries the torque T and 2T. Find the largest allowable value of T if the working shear stresses are 14,000 psi for steel and 7500 for aluminum, and the angle of rotation at the free end must not exceed 8º. Use G = 12 x 106 psi for steel and G = 4 x 106 psi for aluminum. ANS: T = 4970 lb-in Aluminum 1.5 in.- 2T CHO Steel 2 in. → T 2 ft 3 ft
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