A pine wood specimen was prepared with actual dimensions of 50 mm × 50 mm x 250 mm and grain parallel to its length. The deformation was meas- ured over a gauge length of 200 mm. The specimen was subjected to compres- sion parallel to the grain to failure. The load-deformation results are as shown in Table P10.25. TABLE P10.25 Load (Kn) Deformation (mm) 8.9 0.457 17.8 0.597 26.7 0.724 35.6 0.838 44.5 0.965 53.4 1.118 62.3 1.270 71.2 1.422 80.1 1.588 89.0 1.765 97.9 1.956 106.8 2.159 111.3 2.311 a. Using a computer spreadsheet program, plot the stress-strain relationship. b. Calculate the modulus of elasticity. c. What is the failure stress?

A pine wood specimen was prepared with actual dimensions of 50 mm × 50 mm x 250 mm and grain parallel to its length. The deformation was meas- ured over a gauge length of 200 mm. The specimen was subjected to compres- sion parallel to the grain to failure. The load-deformation results are as shown in Table P10.25. TABLE P10.25 Load (Kn) Deformation (mm) 8.9 0.457 17.8 0.597 26.7 0.724 35.6 0.838 44.5 0.965 53.4 1.118 62.3 1.270 71.2 1.422 80.1 1.588 89.0 1.765 97.9 1.956 106.8 2.159 111.3 2.311 a. Using a computer spreadsheet program, plot the stress-strain relationship. b. Calculate the modulus of elasticity. c. What is the failure stress?

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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Question

A pine wood specimen was prepared with actual dimensions of 50 mm ×
50 mm x 250 mm and grain parallel to its length. The deformation was meas-
ured over a gauge length of 200 mm. The specimen was subjected to compres-
sion parallel to the grain to failure. The load-deformation results are as shown
in Table P10.25.
TABLE P10.25
Load (Kn)
Deformation (mm)
8.9
0.457
17.8
0.597
26.7
0.724
35.6
0.838
44.5
0.965
53.4
1.118
62.3
1.270
71.2
1.422
80.1
1.588
89.0
1.765
97.9
1.956
106.8
2.159
111.3
2.311
a. Using a computer spreadsheet program, plot the stress-strain
relationship.
b. Calculate the modulus of elasticity.
c. What is the failure stress?

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