Week 8-3D Tetra Meshing Challenge

OBJECTIVE:

To generate tetramesh on the given cad model with respect to the given quality criteria.

GIVEN CAD MODEL:

CASE1

CASE2

CASE3

PROCEDURE:

case1: Create a Tetramesh for Housing component by 2D to 3D Conversion.

1. import the given housce model and do the geometry clean up . Delete the solid .
2. 
3. Generate 2D mesh on the surface of the geometry 2d>automesh>select elments.
4. 
5. Give quality criteria and check for element failure.
6. Before going for conversion from 2d to 3d there should not be any quality failure in the geometry.
7. go to 3d>tetramesh>choose element >mesh.
8. 
9. Once the elements are converted go to tool>check elements>3d>tet collapse. Clear the tet collapse failure by remeshing the tetra 3d element
10. 
11. Thus we get the tetra 3d elements . Delete the 2d to view the 3d elements.
12. 
13. delete:
14. go to delete >right click>select the configure>delete.
15. 

case2: For the given model, Create a 3D Tetramesh by Quick Tetra Mesh/ Volume Tetra Mesh.

1. Import the geometry on the screen and complete geometry clean up if needed.
2. 
3. go to 3d>tetramesh >component>mesh by choosing the displayed geometry.
4. 
5. For the quick tertra mesh go to view>browser>hypermesh>utility>geo mesh>quick tetramesh>give the values>select the component>run the mesh .
6. 
7. 
8. We get new collecter for quick tetra mesh .
9. 
10. The above failed elements for tet collapse can be solved by tetra remeshing,
11. 
12. 
13. thus the given model is meshed with the given quality criteria.

case 3: For the given assembly model, Create a 3D Tetramesh by Quick Tetra Mesh/ Volume Tetra Mesh.

1. This is similar to the case 2 , but the model are already in 2d elements . so we choose 3d>tetramesh>elements>mesh .
2. 
3. the above model is directly converted from 2d to 3d elements.
4. 
5. 
6. 
7. The above parts undergoes tetra meshing individually along with quality correction. tools>checks>tetcollaspe>tetra remesh. The above images shows no failure for tet collapse.
8. Delete the 2d elements to view the tetra 3d elements created.
9. 

CONCLUSION:

The above model is meshed with given quality and methods .

FINAL MODEL :