AnsweredAssumed Answered

Shell model converge problem

Question asked by Henk Klaasen on Feb 9, 2015
Latest reply on Feb 13, 2015 by Jared Conway

Hello,

 

I'm busy with a shell model with the rough size of 1200x150x260mm. When the mesh is getting smaller around a bolt
fixture, the displacement/strain and stress is going up.
When i modelled a radius of 10 in this area, i'm having the same problem (see picture).

 

 

meshStress [Mpa]Displacement
  [mm]
Strain (e-4)Largest welds [mm]
4034.880.19353.05213.1
3532.370.182.78311
3035.780.16243.68412.6
2529.460.12413.0559.7
2030.260.10673.2979.6
1527.610.10613.199.6
1030.20.10853.41911.2
534.770.1094.19112.6
5 & 3mm
  refinement @ peakstress
43.070.1094.77312.9
5 & 2mm
  refinement @ peakstress
1150.429612.3719

 

stress.JPG

 

Is it safe for me to say that the 20mm mesh gives the most accurate solution ?

At that moment i thought the displacement and strain where converged (even the stress).

 

Is there a basic rule for a limit on the refinements on shell models in solidworks ?

 

Thanks
in advance,

Outcomes