8-6 Examples The following creep data were taken on an aluminum alloy at 480C and a constant stress of 2.75 MPa. Plot the data as strain versus time, then determine the steady-state or minimum creep rate. Note: The initial and instantaneous strain is not included. 26 28 1.03 1.12 1.22 8 16 18 20 22 24 30 32 34 10 0.55 Time (min): 0 12 14 0.48 0.62 0.68 0.75 0.82 0.88 0.95 1.36 1.53 1.77

8-6 Examples The following creep data were taken on an aluminum alloy at 480C and a constant stress of 2.75 MPa. Plot the data as strain versus time, then determine the steady-state or minimum creep rate. Note: The initial and instantaneous strain is not included. 26 28 1.03 1.12 1.22 8 16 18 20 22 24 30 32 34 10 0.55 Time (min): 0 12 14 0.48 0.62 0.68 0.75 0.82 0.88 0.95 1.36 1.53 1.77

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

8-6 Examples
The following creep data were taken on an aluminum alloy at 480 °C and a constant stress of
2.75 MPa. Plot the data as strain versus time, then determine the steady-state or minimum creep
rate. Note: The initial and instantaneous strain is not included.
Time (min): 0
Strain:
4
10
12
14
18
0.82
20
22
0.95
16
24
26
28
30
32
0 0.22
34
1.77
0.34
0.41
0.48
0,55
0.62
0.68
0,75
0.88
1.03
1.12
1.22
1.36
1.53

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