Thanks. I'm going to look and see if I can find some sources for fatigue curves of the material I'm interested in. It's looking like there's no way to correlate other ratios to fully reversed.
I understand what you are saying about stress ratios greater than 0 are not all that conservative relative to R=0 unless stress min approaches stress max. What I am mainly concerned with is estimating these fatigue endurance limits for ratios other than R=-1. I can calculate what the R=-1...
I was wondering if anyone has any feedback on how to go about estimating endurance limits for steel in particular, when the stress fluctuations are other than fully reversed (R=-1). Fully reversed fatigue endurance limit is a fairly straight forward process following standard protocols on...