A tensile test was conducted on a specimen with a diameter of 0.5 inch. A strain gage was bonded to the specimen so that the strain could be obtained directly. The fol- lowing data were obtained: Load (lb) 2,000 2,500 3,000 3,500 4,000 4,500 5,000 Strain (micro in./in.) 47 220 500 950 1,111 1,200 1,702

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A tensile test was conducted on a specimen with a diameter of 0.5 inch. A strain gage
was bonded to the specimen so that the strain could be obtained directly. The fol-
lowing data were obtained:
Load (lb)
2,000
2,500
3,000
3,500
4,000
4,500
5,000
Strain (micro in./in.)
47
220
500
950
1,111
1,200
1,702
a. Create a table of stress and strain values.
b. Plot these data points, and draw a best-fit straight line through them.
c. What is the slope of this line? What does this value represent?
Transcribed Image Text:A tensile test was conducted on a specimen with a diameter of 0.5 inch. A strain gage was bonded to the specimen so that the strain could be obtained directly. The fol- lowing data were obtained: Load (lb) 2,000 2,500 3,000 3,500 4,000 4,500 5,000 Strain (micro in./in.) 47 220 500 950 1,111 1,200 1,702 a. Create a table of stress and strain values. b. Plot these data points, and draw a best-fit straight line through them. c. What is the slope of this line? What does this value represent?
Spreadsheet results:
(a) (b)
Load Stress
(lb) (psi) microstrain
2,000 10,186
47
2,500 12,732
220
3,000 15,279
500
3,500 17,825
950
4,000 20,372 1,111
4,500 22,918
1,200
5,000 25,465
1,702
(c)
Stress (psi)
30,000
25,000
20,000
15,000
10,000
5,000
0
0.000000
0.000500
Answers
Plese show
detailed solutions
0.001000
Strain
in
0.001500
A - C
so Intions
0.002000
Slope = 9,210,000 psi = modulus of elasticity
and
an
Transcribed Image Text:Spreadsheet results: (a) (b) Load Stress (lb) (psi) microstrain 2,000 10,186 47 2,500 12,732 220 3,000 15,279 500 3,500 17,825 950 4,000 20,372 1,111 4,500 22,918 1,200 5,000 25,465 1,702 (c) Stress (psi) 30,000 25,000 20,000 15,000 10,000 5,000 0 0.000000 0.000500 Answers Plese show detailed solutions 0.001000 Strain in 0.001500 A - C so Intions 0.002000 Slope = 9,210,000 psi = modulus of elasticity and an
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