High Aspect Ratio Elements

- June 24, 2021 at 3:20 pm
  
  DoodlerD
  Subscriber
  
  Hi!
  What are some shell meshing tips for high aspect ratio elements at fillets?
- June 25, 2021 at 5:00 am
  
  1shan
  Ansys Employee
  
  A general rule of thumb is to have 3-4 elements across the fillet radius. If the elements are getting too stretched (aspect ratio>4-5), you can add an edge sizing control to create more elements with reduced aspect ratios. You can perform a mesh convergence study to verify how different mesh settings influence the accuracy of your results.
  Regards Ishan.
- June 25, 2021 at 1:06 pm
  
  DoodlerD
  Subscriber
  
  Ishan I tried a lot but I cant get the elements to have slightly higher aspect ratio. Edge sizing results in refined mesh with squarish elements.
- June 25, 2021 at 3:54 pm
  
  DoodlerD
  Subscriber
  
  These are the mesh controls: Global fixed mesh = 1 inch, all sides except corners are 1" with growth ratio of 1. all mesh controls are set to hard behaviour
  But the quad mesh ends up failing.
- June 25, 2021 at 5:17 pm
  
  DoodlerD
  Subscriber
  
  I actually want to have larger aspect ratios, because the structure is large with several welds
- June 26, 2021 at 5:14 pm
  
  peteroznewman
  Subscriber
  
  Try adding a Face Meshing control to the rectangular faces. That forces quad elements to map from one side to the opposite side so you can have longer or larger quads on those faces.
- June 28, 2021 at 1:54 pm
  
  DoodlerD
  Subscriber
  
  Works Well Thank you!