Project

Tetra Meshing

Objective:

1.To perform 3d meshing on the given models.

Elements sizes: Min- 2mm, Target- 5mm, Max- 7mm

Tet collapse: 0.15

2.To perform 3D tetra mesh with 6mm element size.

3.For model-3, the target element size is 3mm.

Procedure:

Method 1:

The next step is to rearrange the construction lines which will fail for minimum element length.

After rearranging the construction lines the 2d mesh is performed using only trias.
The elements which will fail for quality issues are reconstructed and proper mesh is achieved.

Then Using tertamesh option in the 3d tool menu, the tetra mesh is created by selecting the 2d shell elements.
Then the tet collapse quality is checked and using tetra-remesh option the quality issues are fixed.
Then using organize option the tetra mesh are moved into a separate collector for convenience.

Conclusion:

Method 2:

Then in the view tab, click on browsers> hypermesh> utility.
Then in the utility menu option click on geo/mesh option.
Then in the utility dialogue box select element size and mesh type and select the component and click on mesh option.
The 2d mesh and 3d tetra mesh is automatically performed by the Hypermesh software.
The tetra mesh will be saved in the separate collector automatically and it can be renamed as per our requirement.

Then the 3d tetra mesh elements are checked for tet collapse quality issue and it is rectified by using the tetra remesh option in the 3d menu option.

The same procedure is followed for the housing part also to create the tetra mesh.
Set the parameters in the utility option to create the automatic tetra mesh.

The 3d tetra mesh elements are checked for the tet-collapse quality issue and it is cleared by tetra-remesh option.

Conclusion:

Model 3:

Quality criteria: Target Element size:3, Tet Collapse:0.15

Procedure:

Then in the view tab, click on browsers> hypermesh> utility.
Then in the utility menu option click on geo/mesh option.
Then in the utility dialogue box select element size and mesh type and select the component and click on mesh option.
The 2d mesh and 3d tetra mesh is automatically performed by the Hypermesh software.
The tetra mesh will be saved in the separate collector automatically and it can be renamed as per our requirement.

Using the solid optimization in the utility tab the elements are remeshed.
By increasing the tet collapse value to 0.17, the tetra elements are remeshed.
After remeshing, the tetra elements are again checked for tet collapse quality issue.

Conclusion:

Understand how to generate automatic 3d tetra mesh elements according to the given quality criteria.

Ship work like this
in your own course.