Hightemp
Aluminum
- Joined
- Nov 2, 2010
- Location
- Virginia, USA
You're right that it's hard to evaluate all the factors like specific loads and stress concentrators.
But, you can probably draw ok conclusions from S-N curves from slightly different conditions. Remember that these are log scales, so if the curve for 17-4 looks just a bit higher than 304 (or whatever) it might actually be like 5x the life.
But, you can probably draw ok conclusions from S-N curves from slightly different conditions. Remember that these are log scales, so if the curve for 17-4 looks just a bit higher than 304 (or whatever) it might actually be like 5x the life.