Challenge

Week 8-3D Tetra Meshing Challenge

Aim-

To perform 3D terta mesh on given models and satisfy given quality criteria.

Procedure-

1.Model-1(Housing Assembly)-

Initially ww will import the given model for that go to import>>import geometry>>Step file then hit import.

then go to topo mode and do manual geometry cleanup, also defeature the fillets which are less that the min element size.
For that go to quick edit panel, geom>>quick edit (F11), try to toggle the lines failing for min element size.

Now go to 2D>>automesh(F12)>>select surface>>element size-5 & element type- tria.

Now we will check for quality criteria for min and max element size and try to resolve that as well.
below image shows that there is no any element failing for min criteria, so we are good to go for 3D, mesh.

For 3D mesh go to 3D panel and select tertamesh, then go to tetra mesh select 2D Tria element and hit mesh.

once we are done with meshing we will go to tool>>check elems here select 3D and go to tet collapse and set value as per given to 0.15.
So we found some elements failing for that so to fix go to tetramesh>> tetra remesh>> select failed element and try to remesh as resolve the issue, below snap shows there are 0 elements failing for tet collapse after error resolution.

we will follow above mentioned procedure for the next part and check for tet collapse and quality criteria for min element size in 2D.
Below snap shows that the part is not failing for any criteria.

Final Result-

2. Model 2 (

Initially we will import the given model for that go to import>>import geometry>>iges file then hit import.

Since the given model is in Solid so we directly go to 3D>>tetramesh>>volume tetra and we will select target element size as 3.
Now we will check the mesh for tet collapse at 0.15 and try to eliminate all the failing elements.

Final Result-

3. Model 3-

Initially we will import the given model for that go to import>>import geometry>>iges file then hit import.
since there are in all 4 major parts are there which we need to mesh them either by quick mesh or by volume mesh.
So for quick mesh go to view>>hypermesh>>utility>>geom/mesh>>select component>>select element size>>select mesh type (tria)>>hit mesh.
since this mesh will be generated in different collector so we have to move to our desired collector, for that go to tool>>organise>>select element>>select disired collector>>hit move.
as the middle coupling are 2 in number and we will mirror the first half.
For that go to tool>>reflect >>select element (duplicate the element to component)>>select direction and base point>>hit reflect, again we have to move it to required collector.
For that go to tool>>organise>>select element>>select disired collector>>hit move.

Now one by one we will mesh all component using both mesh type and try to eliminate tet collapse error.
below snap shows all the components having 0 tet collapse error.

Conclusion-

Ship work like this
in your own course.