Model is for a small bridge all done with panels. Structure is perfectly symmetric as it is also for all of the identical nodal supports that are blocked in Uz and have very weak spring on Ux and Uy global directions, just to bypass instabilities warnings. Only load case is Self weight generated by the program.
Different mesh methods and different results . I only noticed because my 1st mesh option for all panels was the one that caused the illogical results ,which was "Delauney + regular mesh selected" which is shown in the pic below
Tried to find the cause by checking the whole simple geometry again. but couldn´t find the error.
But changing the mesh method did the trick . Below ,results without regular mesh selected which gave very near perfect results ,and far below the 3rd pic with Coons method which was the only one that gave perfect symmetrical reactions
I Know that for this model the differences between the results are negligible , at least for Self weight load case.
But , still , it is a very simple and small model . I wonder what will happen with very large models for symmetrical and also unsymmetrical structures . Will "Delauney + regular mesh" mesh method be reliable??
Rafael Medeiros
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