Hi,

This is regarding fatigue calculation.
In a project, we are supposed to use different fatigue curves for two different load cases. My query is

1. In CAESARII Can we apply more than one fatigue curve to piping in same CII file?

If I have to make two separate CII files,

2. Can these two damage ratios obtained from different curves, be combined using miners rule?

Thanks in advance.

1. No.
2. Yes.

However, CAESAR will report permissible cycles for each. I'm not certain you need to crack open a spreadsheet to combine them.

Though this might be a good time to suggest 3d fatigue data as a CAESAR improvement.

Thanks Mr. Fletcher.