Hi everyone,
I want to calculate stress range in fatigue load cases. Fatigue is a cyclic stress and we have 3 layers i.e., Z1, mid and Z2.
When I use range in envelope of LC1 and LC2, where LC1 and LC2 are stress cycle, the value get is range = max(Z1, mid, Z2)-min(Z1, mid, Z2).
But what I want is Range 1 = max(Z1 of LC1, LC2) - min(Z1 of LC1, LC2),
Range 2 = max(21 of LC1, LC2) - min(21 of LC1, LC2) Range = max(Range 1, Range 2) for the same element.
This is simple when we have only 2 load cases but I have more and I get different element as maximum stressed in different load case and I cant check for range for this element in all load cases, it time consuming.
Is there any way I can do It. You know hyperlife weld certification for DVS1612 does the same. If event is LC1 and LC2 it take max and min stress of the same layer and calc stress range.
Or should I go with expression builder. If expression builder please give me the formula