Q1/ The table below shows the values of stress amplitude and life cycles :Fatigue strength Sf (Mpa)Number of cycles (Nf)474111417496352300231670652902193026266075The test were done, to estimate the failure, on un-notched axially load specimens under zero mean stress.Calculate a and b using the stress -life equation.

We know that stress life cycle Sf = aNb log Sf = log(a) + n *logN Let us assume Log Sf = Y, log…

Answered: hows the values of stress amplitud…

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hows the values of stress amplitud Fatigue strength Sf (Mpa) 474 417

Elements Of Electromagnetics

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Thermal Properties of Materials

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Q1/ The table below shows the values of stress amplitude and life cycles :
Fatigue strength Sf (Mpa)
Number of cycles (Nf)
474
111
417
496
352
3002
316
7065
290
21930
262
66075
The test were done, to estimate the failure, on un-notched axially load specimens under zero mean stress.
Calculate a and b using the stress -life equation.

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