I am attempting to get correct displacements for a simple beam with an enforced rotation applied to one end -- please see the attached .dat file. "Correct displacements" are ones where the free end of the beam moves in an arc, not in a line. In my case…
I have been successful in extracting pre-loaded nonlinear stiffness matrices using EXTSEOUT in SOL 103 restarting from a SOL106, such as suggested in the topic:
forums.mscsoftware.com/.../showflat.php
Now, I need to do the same…
When running SOL 128 - nonlinear harmonic frequency solution - I get a FATAL message that there are no nonlinear degrees of freedom defined. How do I define these?