Mechanics of Materials
11th Edition
ISBN: 9780137605460
Author: Russell C. Hibbeler
Publisher: Pearson Education (US)
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Chapter 3.4, Problem 11P
The stress-strain diagram for an aluminum alloy specimen having an original diameter of 0.5 in. and a gage length of 2 in. is given in the figure. If the specimen is loaded until it is stressed to 60 ksi, determine the approximate amount of elastic recovery and the increase in the gage length after it is unloaded.
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3.5 please need assistance
The stress strain curve determined from a sample of material
is shown in the figure. The original diameter was 14.3 mm
and it changed to 14.28858 when a 43.5 kN load was applied.
Calculate Poisson's ratio for the sample.
o (MPa)
550
400
0.00275
Poisson's ratio v =
0.0
A tensile test specimen has a gage length = 3.0 in and
diameter 0.75 in. Yielding occurs at a load of 38,000 lb. The
corresponding gage length = 3.0103 in (neglect the 0.2 percent
yield point). The maximum load of 54,000 lb is reached at a gage
length = 3.453 in. Determine the modulus of elasticity (neglect
the 0.2% offset, and round to the nearest whole Msi).
37
Chapter 3 Solutions
Mechanics of Materials
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