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A cylindrical specimen of 1018 steel having a diameter of 6.35 mm and a gauge length of 38.1 mm is pulled in tension. Use the load-elongation characteristics tabulated below. Determine the yield strength (σy) at a strain offset of 0.002.

A cylindrical specimen of 1018 steel having a diameter of 6.35 mm and a gauge length of 38.1 mm is pulled in tension. Use the load-elongation characteristics tabulated below. Determine the yield strength (σy) at a strain offset of 0.002.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A cylindrical specimen of 1018 steel having a diameter of 6.35 mm and a gauge length of
38.1 mm is pulled in tension. Use the load-elongation characteristics tabulated below. Determine the yield strength (σy) at a strain offset of 0.002.

Force (N) Force (N) Displacement (mm) Displacement (mm) 4.57 9358 0.06 60 4.97 9458 0.11 121 5.37 9558 0.17 181 5.77 9658 0.23 242 6.17 9708 0.27 687 6.57 9758 0.30 1171 6.97 9858 0.34 1434 7.37 9858 0.38 1979 7.77 9758 0.42 2222 8.17 9758 0.46 2665 8.57 9758 0.50 3029 8.97 9758 0.53 3433 9.37 9758 0.57 3958 9.77 9758 0.61 4261 10.17 9758 0.65 4705 10.57 9708 0.69 5028 10.97 9658 0.72 5351 11.37 9608 0.76 5957 11.77 9558 0.80 6280 12.17 9458 0.97 6658 12.57 9258 1.37 7058 12.97 8858 7658 13.37 13.77 1.77 8858 2.17 7958 7358 2.57 8258 13.77 2.97 8708 3.37 8908 3.77 9058 4.17 9208
Transcribed Image Text:Force (N) Force (N) Displacement (mm) Displacement (mm) 4.57 9358 0.06 60 4.97 9458 0.11 121 5.37 9558 0.17 181 5.77 9658 0.23 242 6.17 9708 0.27 687 6.57 9758 0.30 1171 6.97 9858 0.34 1434 7.37 9858 0.38 1979 7.77 9758 0.42 2222 8.17 9758 0.46 2665 8.57 9758 0.50 3029 8.97 9758 0.53 3433 9.37 9758 0.57 3958 9.77 9758 0.61 4261 10.17 9758 0.65 4705 10.57 9708 0.69 5028 10.97 9658 0.72 5351 11.37 9608 0.76 5957 11.77 9558 0.80 6280 12.17 9458 0.97 6658 12.57 9258 1.37 7058 12.97 8858 7658 13.37 13.77 1.77 8858 2.17 7958 7358 2.57 8258 13.77 2.97 8708 3.37 8908 3.77 9058 4.17 9208
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