Week 8-3D Tetra Meshing Challenge

AIM: To perform 3D tetra mesh on the given models.

PROCEDURE: Model 1(Housing)

step 1:Import the given model and check for any geometry error.

Step 2:Next step is to defeature some edges that might fail for minimum length quality criteria, as shown below.

• Initially Mesh the surface using 2D tria elements

• Check for minimum and maximum element size errors and clear the same.
• Below the image shows there no min and max element size error.

Step 3:

• Perform 3D tetra mesh using the 2D tria elements, 3D>>Tetramesh>>select all the elements.

• Check tet collapse for 0.15, in tools>>check elements>>3d>>tet collapse, fix the errors by tetra remesh or manually by moving the nodes.

Model 2:

Step 1:

Import the geometry to the software

• Look for any geometry error in the cad
• Delete any solid elements in the model
• The given model is surface, so used 3d>>tetramesh>>volume tetramesh>>surface, gave the desired element size and gave tet collapse value in tetra mesh parameter.
• The given model is meshed and fixed all the tet collapse error.
• The below image shows the final result.

MODEL3

• Import the model to the software, look for any geometry error
• There are 4 different components in this model
• Central hub is meshed by 2d tria element and convert the same to 3d tetramesh

• Casing 1 is meshed using volume tetramesh method

• Hub will be meshed one side and be reflected to the other side

• Check for only tet collapse error in this model and fix the same

• Final output is shown in below image