U-P elements
U-P elements
(OP)
Hi All,
I have a working model which achieves convergence, but I keep getting multiple convergence iterations on some load steps.
XX U-P ELEMENTS DO NOT SATISFY THE VOLUMETRIC COMPATIBILITY
Is there anything I can do here aside from just stepping the load smaller? Small load steps work fine, but I dont want to have to take 1000 substeps!
Thanks
I have a working model which achieves convergence, but I keep getting multiple convergence iterations on some load steps.
XX U-P ELEMENTS DO NOT SATISFY THE VOLUMETRIC COMPATIBILITY
Is there anything I can do here aside from just stepping the load smaller? Small load steps work fine, but I dont want to have to take 1000 substeps!
Thanks





RE: U-P elements
If its converging, is your questions just how to reduce the number of necessary iterations per load step?
RE: U-P elements
I see the "<<<CONVERGED" as many as 8 times before it bisects. It just continues to solve. I even watch the GST and I see the lines cross but the solution continues to solve way below the criterion line. To clarify, this is PER substep.