I do not know whether someone will give the feedback, may be my questions are always too detail.
I am using the CAE enhancement in Marc, Signed Von Mises stress is used to find the life, difficult mean correction methods are check to understand how they works. Then I found the Goodman tension only method gives me a strange result:
The life gives by Marc is 94.77
However, using the Von Mises stress outputted by Mentat, my calculation is:
I think my hand calculation should be right, because when I use the Goodman method, it fits well with the Marc result.
So why I got the wrong life when I change the mean correction to Goodman Tension only?
Due to the attachment size limit, I only upload the 1st job file, but it's easy to set up the 2nd