A pine wood specimen was prepared with actual dimensions of 50 mmx50 mm x 250 mm and grain parallel to its length. The deformation was measured over a gauge length of 200 mm. The specimen was subjected to compression parallel to the grain failure. The load- deformation results are shown in table below:

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Chapter2: Loads On Structures
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A pine wood specimen was prepared with actual dimensions of 50 mmx50 mm x 250 mm and grain
parallel to its length. The deformation was measured over a gauge length of 200 mm. The specimen
was subjected to compression parallel to the grain failure. The load- deformation results are shown in
table below:
Load (kN)
Deformation (mm)
8.9
0.457
17.8
0.597
26.7
0.724
34.5
0.838
43
0.965
52.9
1.118
62.01
1.27
71.03
1.422
80.1
1.588
89
1.765
99.6
1.956
108
2.159
111.3
2.311
112
2.456
a. Using a computer spreadsheet program, plot the stress-strain relationship.
b. Calculate the modulus of elasticity.
С.
What is the failure stress?
Transcribed Image Text:A pine wood specimen was prepared with actual dimensions of 50 mmx50 mm x 250 mm and grain parallel to its length. The deformation was measured over a gauge length of 200 mm. The specimen was subjected to compression parallel to the grain failure. The load- deformation results are shown in table below: Load (kN) Deformation (mm) 8.9 0.457 17.8 0.597 26.7 0.724 34.5 0.838 43 0.965 52.9 1.118 62.01 1.27 71.03 1.422 80.1 1.588 89 1.765 99.6 1.956 108 2.159 111.3 2.311 112 2.456 a. Using a computer spreadsheet program, plot the stress-strain relationship. b. Calculate the modulus of elasticity. С. What is the failure stress?
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