Hello, how do the element stress results compare to the S-N curve? Do the elements showing low fatigue life have higher stresses/high damage ratio?
The expected fatigue life is computed as exposure time (in time domain, it is defined by termination time by *CONTROL_TERMINATION, also see texpo paramter) divided by cumulative damage ratio.
Regarding your question 3, expected fatigue cycles are computed as "expected fatigue life" times “zero-crossing frequency with positive slope”. For d3ftg generated in a time domain fatigue analysis, only cumulative damage ratio and expected fatigue life are provided. There is no “zero-crossing frequency” so no “expected fatigue cycle” is provided.
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