thanks crostolo, I will try to do as you said.
It didn't cross my mind that the cause of that problem was that the model used by the solutor is different (neither i thought about the correlation between the number of elements and the number of "false" values).
Hi to all, this is my first post, I hope I am not breaking any rules.
I'm tring to better understand how to model correctly the buckling of a beam with patran/nastran so i created a simple model for wich i already have the correct result of primary and secondary buckling.
I have made a 1D...
