Question 6.2: Determining Estimated S-N Diagrams for Nonferrous Materials ...
Determining Estimated S-N Diagrams for Nonferrous Materials
Problem Create an estimated S-N diagram for an aluminum bar and define its equations. What is the corrected fatigue strength at 2E7 cycles?
Given The S_{ut} for this 6061-T6 aluminum has been tested at 45 000 psi. The forged bar is 1.5 in round. The maximum operating temperature is 300°F. The loading is fully reversed torsion.
Assumptions A reliability factor of 99.0% will be used. The uncorrected fatigue strength will be taken at 5E8 cycles.
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