Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Chapter 3, Problem 3.35QP
A high-yield-strength alloy steel bar with a rectangular cross section that has a width of 37.5 mm, a thickness of 6.25 mm, and a gauge length of 203 mm was tested in tension to rupture, according to ASTM E-8 method. The load and deformation data were as shown in Table P3.35.
Using a spreadsheet program, obtain the following:
- a. A plot of the stress-strain relationship. Label the axes and show units.
- b. A plot of the linear portion of the stress-strain relationship, Determine modulus of elasticity using the best-fit approach.
- c. Proportional limit.
- d. Yield stress.
- e. Ultimate strength.
- f. If the specimen is loaded to 155 kN only and then unloaded, what is the permanent deformation?
- g. In designing a typical structure made of this material, wronld you expect the stress applied in (f) safe? Why?
TABLE P3.35
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A high-yield-strength alloy steel bar with a rectangular cross section that has a width of 37.5 mm, a thickness of 6.25 mm, and a gauge length of 203 mm was tested in tension to rupture, according to ASTM E-8 method. The load and deformation data were as shown in Table Using a spreadsheet program, obtain the following:a. A plot of the stress–strain relationship. Label the axes and show units.b. A plot of the linear portion of the stress–strain relationship. Determine modulus of elasticity using the best-fit approach.c. Proportional limit.d. Yield stress.e. Ultimate strength.f. If the specimen is loaded to 155 kN only and then unloaded, what is the permanent deformation?g. In designing a typical structure made of this material, would you expect the stress applied in (f) safe? Why?
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Chapter 3 Solutions
Materials for Civil and Construction Engineers (4th Edition)
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