hi guys
in case of we have more than one thermal cycle
To calculate the equivalent number of cycles code states that we have to calculate the stress range (Si)corresponding to each N and select the maximum range to be (Se) and the number of cycles corresponding to Se is Ne and then use the equation (1d) to estimate N
N = Ne + ri * Ni for i = 1, 2, 3…
Where ri = Si/ Se
Now, how to calculate Se and Si should we model the system on Caesar and use the stress summary to select the maximum stress for each range
Or should we calculate them based on Sc and Sh for each temperature range
Please help