Week 8-3D Tetra Meshing Challenge

Aim: To create a Tetramesh for the following components with the given quality criteria

Procedure

Model 1:Housing

Load the Back door component into the hypermesh software.

Since the file is in the STP format.Select the STP in the import column

Since the component has 2 sub-parts, Tetramesh is done separately for each component

Solids present in the model are deleted using the delete command

Quality Criteria are entered

2D meshing is done on the model before tetra mesh is done

2D>Automesh>Mesh type:Tria>element size 5

Once 2D meshing is completed the elements are checked for quality criteria. If all the elements satisfy quality criteria tetra mesh is carried out

3D>Tetramesh>Tetramesh>component>Mesh

As seen from the above figure Tetra mesh is completed and the elements are checked for tet collapse

The elements failing for Tet Collapse are solved using the Tetraremesh option

A similar process is done for other components

Model 2:Quick Tetra Mesh/ Volume Tetra Mesh

Quick Tetra or Volume tetra mesh is used when the quality criteria are not required

3D>Tetramesh>Volume tetra >component

element size is given as 3

Tet collapse:0.15

Elements failing for tet collapse is rectified using remesh tetra option

Similar process is done for model 3 as well

Final models

Model1

Model 2

Model 3