A steel fence wire 3.5 mm in diameter is stretched between rigid end posts with a tensile stress of 139.07 MPa when the temperature is 32°C. The proportional limit of the wire is 276 MPa. E = 207 GPa. Compute the temperature drop (change in temperature) that could occur without causing a permanent set in the wire. a =0.0000117 /°C. (Do not include the sign). Hint: The material will not experience permanent set as long as the stress experienced does not exceed the proportional limit.
A steel fence wire 3.5 mm in diameter is stretched between rigid end posts with a tensile stress of 139.07 MPa when the temperature is 32°C. The proportional limit of the wire is 276 MPa. E = 207 GPa. Compute the temperature drop (change in temperature) that could occur without causing a permanent set in the wire. a =0.0000117 /°C. (Do not include the sign). Hint: The material will not experience permanent set as long as the stress experienced does not exceed the proportional limit.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A steel fence wire 3.5 mm in diameter is stretched between rigid end posts with a tensile stress of 139.07 MPa when the temperature is 32°C. The proportional
limit of the wire is 276 MPa. E = 207 GPa. Compute the temperature drop (change in temperature) that could occur without causing a permanent set in the wire. a
=0.0000117 /°C. (Do not include the sign).
Hint: The material will not experience permanent set as long as the stress experienced does not exceed the proportional limit.
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