Given: A steel rod (A= 150 mm?) is stretched between two fixed points with a tensile load of 5000 N at 20°C. a.) What will be the stress at -20°C? b.) At what temperature will the stress be zero? Assume a = 11.7 µm/m°C, and E = 200 Gpa

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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PROBLEM 3
Given: A steel rod (A= 150 mm?) is stretched between
two fixed points with a tensile load of 5000N at 20°C.
a.) What will be the stress at -20°C?
b.) At what temperature will the stress be zero?
Assume a = 11.7 µm/m°C, and E = 200 Gpa
%3D
©sidewa R
L
Transcribed Image Text:PROBLEM 3 Given: A steel rod (A= 150 mm?) is stretched between two fixed points with a tensile load of 5000N at 20°C. a.) What will be the stress at -20°C? b.) At what temperature will the stress be zero? Assume a = 11.7 µm/m°C, and E = 200 Gpa %3D ©sidewa R L
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