Challenge

Week 8-3D Tetra Meshing Challenge

RRavisangar R29 Apr 2021

OBJECTIVE :

To create a tetramesh for the given 3 models using any one of the suitable tetrameshing methods and also following the given quality criteria.

PROCEDURE :

Import the given model and check for the solids or surfaces in the display. There are 3 models given here and the below procedure is followed in the models given one by one.
If any solids are found they can be deleted using the delete option and the given model is made ready for meshing.
Before meshing the geometry cleanup is carried out either by defeature option or by manual cleanup using toggle edge option. The model is thus made properly ready for the meshing.
If the tertamesh is made by converting 2D to 3D mesh, then the surfaces of the model are meshed using the automesh option in 2D panel and only trias of mentioned target element length are used in 2D meshing.
Then the 2D mesh is converted to 3D mesh by switching to the 3D panel where the tetramesh option is selected and the elements displayed are selected and processed for tetrameshing. Thus the tetramesh is done and the 3D mesh is verified by masking few elements of the geometry.
Tetramesh can also be made by volume tetramesh method in which either the solids or surfaces of the component are selected and meshed. Thus the volume tetramesh is made but the quality of the mesh made by this method does not have better quality mesh as compared to the 2D to 3D mesh converting method.
The other method for making tetramesh is by using the quick tetramesh from the utility panel and the mesh made in this method is almost similar to the mesh made by volume tetramesh.
The tetramesh is then checked for the tetcollapse using the check elements option and the failed elements are fixed up by using the tetraremesh option and still the elements which are failing for tetcollapse are fixed by using the translate option.
Thus the tetramesh of given quality is made in the given 3 models by using the most suitable and accurate method.