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

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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

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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The creep data have been taken on an ahuminum alloy at 400°C and constant stress of 25MPA are shown in below Table, Find the steady state or minimum creep rate. Time (min) strain Time (min) 16 strain 0.135 0.0 0.0 2 0.025 18 0.153 4 0.043 0.065 20 0.172 0.193 0.218 22 0.078 24 10 0.092 26 0.255 12 0.109 28 0.307 14 0.120 30 0.368