Hole free edge and minimum Size Mesh (Quality Index)

germancc

Hi, I'm new on this type of sotware (kinda self taught).

 

I want to mesh a side view mirror from a car and make a stress analysis.

 

First problem: When I want to fix the geometry, the holes where the bolts would be (to fix the mirror to the car door) show free edges. How could I fix that?

 

 

Second problem: When I make the 2D mesh with an element size of 2 and check quality index, it shows 100% of elements with min size problem. And that wouldn't be good for the stress analysis. 

 

 

Yes, I meshed the geometry with the free edges still unfixed, but I also tried meshing with out them (no holes) with the same results.

I've also tried greater element sizes with the same results (at size 20 it shows no errors on surface with no holes, but with them it gets kinda messy and errors show up).

 

I've attached the file.

 

Sorry for english, not native speaker. Thanks.

 

Unable to find an attachment - read this blog

Simon Križnik

Hi,

 

To fix free edges of the holes use Geom>surfaces>Spline/filler or quick geometry edit (F11)>filler surf 

 

Use the following tools to obtain a better quality mesh:

• Geom>autocleanup to clean up the geometry
• 2D>automesh (F12)>QI optimize>edit criteria to define element quality criteria such as min size
• 2D>elem cleanup can be used to clean up a group of elements
• 2D>qualityindex where element quality can be checked visually and edited using cleanup tools one at a time. The failing elements can be saved to later be retrieved in elem cleanup or automesh again
• tool>check elems>2D (F10) to check elements

Unable to find an attachment - read this blog