Estimate the 10³-cycle fatigue strength for rotating bending and also the bending endurance limit for R. R. Moore test specimens made of 1040, 4140, and 9255 steels having ultimate tensile strengths of 100, 160, and 280 ksi, respectively. Plot the S-N curves on log-log coordinates.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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1) Estimate the 10³-cycle fatigue strength for rotating bending and also the bending endurance limit
for R. R. Moore test specimens made of 1040, 4140, and 9255 steels having ultimate tensile
strengths of 100, 160, and 280 ksi, respectively. Plot the S-N curves on log-log coordinates.
Transcribed Image Text:1) Estimate the 10³-cycle fatigue strength for rotating bending and also the bending endurance limit for R. R. Moore test specimens made of 1040, 4140, and 9255 steels having ultimate tensile strengths of 100, 160, and 280 ksi, respectively. Plot the S-N curves on log-log coordinates.
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