Q-3 The following creep data were taken on an aluminum alloy at 400°C (750°F) and a constant stress of 25 MPa (3660 psi). Plot the data as strain versus time, then determine the steady-state or minimum creep rate.

Q-3 The following creep data were taken on an aluminum alloy at 400°C (750°F) and a constant stress of 25 MPa (3660 psi). Plot the data as strain versus time, then determine the steady-state or minimum creep rate.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Problem 1.1MA

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Thermal Properties of Materials

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Question

Q-3 The following creep data were taken on an aluminum alloy at 400°C (750°F)
and a constant stress of 25 MPa (3660 psi). Plot the data as strain versus time, then
determine the steady-state or minimum creep rate.
Time
Time
(min)
Strain
(min)
Strain
0.00
18
0.82
0.22
20
0.88
4
0.34
22
0.95
0.41
24
1.03
8
0.48
26
1.12
10
0.55
28
1.22
12
0.62
30
1.36
14
0.68
32
1.53
16
0.75
34
1.77

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