Why the buckling analysis with Ansys beam188 element and Kop3=2 does not work?

I try to do buckling analysis with Ansys using beam188 element; if I set the K option 3 = 0, it works, but when I set Kop3=2, it fails to get the eigenvalues. A message informs that file of...

13 October 2021 5,916 2 View