Question

Problem 5: A rotating shaft is tested under various load conditions. It is found that it can withstand a maximum of 450 MPa for $7 \times 10^4$ cycles before showing signs of fatigue failure. If its fatigue behavior can be described by the relation: $S = 600 \times N^{-0.07}$ Determine the number of cycles it can endure at a stress amplitude of 350 MPa.

          Problem 5: A rotating shaft is tested under various load conditions. It is found that it can withstand a maximum of 450 MPa for $7 \times 10^4$ cycles before showing signs of fatigue failure. If its fatigue behavior can be described by the relation:
$S = 600 \times N^{-0.07}$
Determine the number of cycles it can endure at a stress amplitude of 350 MPa.

Problem 5: A rotating shaft is tested under various load conditions. It is found that it can withstand a maximum of 450 MPa for 7 × 10^4 cycles before showing signs of fatigue failure. If its fatigue behavior can be described by the relation:
S = 600 × N^-0.07
Determine the number of cycles it can endure at a stress amplitude of 350 MPa.

Added by Felipe G.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Narayan Hari

10/31/2021

Step 1

07, where is the number of cycles and N is the stress amplitude. We are also given that the shaft can withstand a maximum stress of 450 MPa for 7 x 10^4 cycles before failure. Show more…

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Problem 5: A rotating shaft is tested under various load conditions. It is found that it can withstand a maximum of 450 MPa for 7 x 10^4 cycles before showing signs of fatigue failure. If its fatigue behavior can be described by the relation: = 600 N-0.07 Determine the humber of cycles it can endure at a stress amplitude of 350MPa.