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Simulation / Meshing / Stress Error

Question asked by Mike Armstrong on Jan 23, 2015
Latest reply on Feb 3, 2015 by Jared Conway

I have a relatively simple model with 3 solid bodies and have been running simulations to try and get consistent results. I started off with a very coarse mesh and to ensure the solver managed to converge.

 

I have gradually reduced the mesh size in there areas of interest (pull connections and locations of applied restraint) and have ran into a number of problems. The maximum stress values continually rise the more I refine the mesh due to singularities and the stress error plots return extremely high values. I have used a number of techniques provided throughout the forum (not shown in this model), such as fillets, simplification of geometry with little success.

 

So my questions are:

 

  • What mesh size should I be using at the areas of interest and the areas deemed not critical
  • What stress error is acceptable
  • What techniques are best to eliminate singularities

 

Thanks in advance.

 

Mike

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