The S-N diagram for a titanium alloy is shown in the figure. Calculate the fraction of life consumed by the following sequence of loadings: 15,000 cycles at 80 MPa 120,000 cycles at 60 MPa 3,500,000 cycles at 50 MPa Maximum stress (ksi) 160 140 120 100 80 60 40 20 10³ 10+ 10³ 10⁰ Cycles to failure 107

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Question 1
The S-N diagram for a titanium alloy is shown
in the figure. Calculate the fraction of life
consumed by the following sequence of
loadings:
15,000 cycles at 80 MPa
120,000 cycles at 60 MPa
3,500,000 cycles at 50 MPa
Maximum stress (ksi)
160
140
120
100
80
60
40
20
I
10³
104
105
Cycles to failure
100
107
Transcribed Image Text:Question 1 The S-N diagram for a titanium alloy is shown in the figure. Calculate the fraction of life consumed by the following sequence of loadings: 15,000 cycles at 80 MPa 120,000 cycles at 60 MPa 3,500,000 cycles at 50 MPa Maximum stress (ksi) 160 140 120 100 80 60 40 20 I 10³ 104 105 Cycles to failure 100 107
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