Thank you kuhl for your valid pointers. I agree, if Fx>0 there would be a bending moment around y-axis which could be tricky to handle by just summing up the external forces. For a simple example like the above it's probably easier to work out al…
Hi kuhl,
Thanks for your input, that's certainly one of my concerns. In the picture below a basic model is shown to illustrate my thinking (which definitly can be wrong). Three normal forces are applied at the top of the plate.
In the pre-defined…
Thanks a lot JohnM!
I do seem to get convergence even for an extremly low tangent modulus when applying a deflection (for a ramped up load load and a higher tangent modulus it also converges). In both cases it seems clear that post elastic buckling…
Thanks JohnM!
I take it you mean that the load introduction area/zone should be sufficienlty stiff to avoid issues there?
I have noticed that the tangent modulus greatly affects the convergence, esp. that the lower it gets the harder to get converg…
Hi Victor,
Thank you very much for the quick reply and your valid pointers!
I agree there are more things to consider, like imperfections, internal stresses, load introduction (which is a bit more complicated than explained) etc.
A run with coarse…
"Problem" solved, garbage behind the keyboard - missed to add the configuration name (loadcase) to the file name in the custom model definition, e.g. "filename_LC1.frd"
Hi,
trying sub-modeling on a more complicated model (using Mecway 13, ccx 2.16 pardiso which worked fine on simpler models) but keep getting this error message:
ERROR in readfrd: The input file "coarse.frd" could not be opened.
*ERROR in u_calloc…