1.5-5 A tension test was conducted on a specimen with a circular cross section of diameter 0.5 inch and a gage length of 8 inches. (The gage length is the distance between two marks on the specimen. The deformation is measured within this length.) The stress and strain were computed from the test data and plotted. Two plots are shown here; the first one shows the entire test range, and the second shows a portion near the pro- portional limit. d. Estimate the 0.2% offset yield strength. e. Estimate the ultimate stress. f. If a load of 10 kips is applied and then removed, estimate the permanent defor- mation in inches. Stress (ksi) Stress (ksi) 80 70 60 50 40 30 20 10 0 60 50 40 30 20 10 0 0 0 0.05 0.002 0.1 0.004 0.15 Strain 0.006 Strain 0.2 0.008 0.25 0.01 0.3 0.012

1.5-5 A tension test was conducted on a specimen with a circular cross section of diameter 0.5 inch and a gage length of 8 inches. (The gage length is the distance between two marks on the specimen. The deformation is measured within this length.) The stress and strain were computed from the test data and plotted. Two plots are shown here; the first one shows the entire test range, and the second shows a portion near the pro- portional limit. d. Estimate the 0.2% offset yield strength. e. Estimate the ultimate stress. f. If a load of 10 kips is applied and then removed, estimate the permanent defor- mation in inches. Stress (ksi) Stress (ksi) 80 70 60 50 40 30 20 10 0 60 50 40 30 20 10 0 0 0 0.05 0.002 0.1 0.004 0.15 Strain 0.006 Strain 0.2 0.008 0.25 0.01 0.3 0.012

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

1.5-5
A tension test was conducted on a specimen with a circular cross section of diameter
0.5 inch and a gage length of 8 inches. (The gage length is the distance between two
marks on the specimen. The deformation is measured within this length.) The stress
and strain were computed from the test data and plotted. Two plots are shown here;
the first one shows the entire test range, and the second shows a portion near the pro-
portional limit.
d. Estimate the 0.2% offset yield strength.
e. Estimate the ultimate stress.
f. If a load of 10 kips is applied and then removed, estimate the permanent defor-
mation in inches.
Stress (ksi)
Stress (ksi)
80
70
60
50
40
30
20
10
0
60
50
40
30
20
10
0
0
0
0.05
0.002
0.1
0.004
0.15
Strain
0.006
Strain
FIGURE P1.5-5
0.2
0.008
0.25
0.01
0.3
0.012

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