Learning Forum

[tomas.s.jansson]

I am using 3D tet remeshing in a FEM application and I can only get a uniform element size in the entire body. I have tried to change "MM" in keyword *CONTROL_REMESHING but it does not matter what value I use I still get a uniform element size. Since I need to use small elements on the surface to get the contacts to work I get a very large number of elements in the body. Is there any way to get the tet element size to grow from the surfaces?

[aabedini]

Hello Tomas,

Based on the manual, while the variable "MM" controls monotonic resizing, the growth control is achieved by edge size min/max and region-based settings. Also check the card *DEFINE_BOX_ADAPTIVE,  where you can specify region boxes where BRMIN and BRMAX override RMIN/RMAX, enabling local control of mesh size (e.g., smaller on the surface for contacts, larger elsewhere).