(a) What is the permanent set of the bar (in mm)? 2.184 ] mm (b) If the bar is reloaded, what is the proportional limit (in MPa)? 55 x MPa
(a) What is the permanent set of the bar (in mm)? 2.184 ] mm (b) If the bar is reloaded, what is the proportional limit (in MPa)? 55 x MPa
Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN:9781337094740
Author:Segui, William T.
Publisher:Segui, William T.
Chapter1: Introduction
Section: Chapter Questions
Problem 1.5.5P: The results of a tensile test are shown in Table 1.5.2. The test was performed on a metal specimen...
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Question
![A circular bar of magnesium alloy is 390 mm long. The stress-strain diagram for the material is shown in the figure.
70
63
56
49
O (MPa) 42
35
28
21
14
7
0.002
0.004
0.006
0.008
0.01
The bar is loaded in tension to an elongation of 2.34 mm, and then the load is removed. Hint: Use the concepts illustrated in the figures below. (Assume the curve in the figure above is linear between (0, 0) and (0.001, 28), and curves with a gradually
decreasing slope otherwise.)
F
В
E
F
Loading
CD
Loading
Residual
Elastic
strain
recovery
(a) What is the permanent set of the bar (in mm)?
2.184
X mm
(b) If the bar is reloaded, what is the proportional limit (in MPa)?
55
X MPa](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffc379e4a-fd2d-4da2-a6fa-d5a4af937453%2Faa28dc18-fc59-423b-98da-e3dcfd39d420%2Fbjxot9j_processed.png&w=3840&q=75)
Transcribed Image Text:A circular bar of magnesium alloy is 390 mm long. The stress-strain diagram for the material is shown in the figure.
70
63
56
49
O (MPa) 42
35
28
21
14
7
0.002
0.004
0.006
0.008
0.01
The bar is loaded in tension to an elongation of 2.34 mm, and then the load is removed. Hint: Use the concepts illustrated in the figures below. (Assume the curve in the figure above is linear between (0, 0) and (0.001, 28), and curves with a gradually
decreasing slope otherwise.)
F
В
E
F
Loading
CD
Loading
Residual
Elastic
strain
recovery
(a) What is the permanent set of the bar (in mm)?
2.184
X mm
(b) If the bar is reloaded, what is the proportional limit (in MPa)?
55
X MPa
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