Week 11-3D Tetra Meshing Challenge

                                                                     CHALLENGE 14: 3D TETRA MESHING

AIM:

For the given models, extract 3D Tetra mesh with required parameters..

CAD MODELS:

            

                                                                   Model-1 

             

                                                                 Model-2

             

                                                                  Model-3

PROCEDURE:

                                   Model-1

• View first component in the graphics area. 
• Open the model and view in By Topo mode. Check the surfaces for geometric errors or edge connectivity. 

        

• Set the mesh parameters in the Mesh settings.

        

• Mesh(Trias) the entire surfaces maintaining the quality criteria and complete the model by 2D meshing.
• In 3D menu, select Tetramesh option to convert the 2D elements to 3D Tetra mesh.

          

• Check for tet collapse.

         

• View the second component in the graphics area. 

        

• Delete the solid from the model.

        

• Open the model and view in By Topo mode. Check the surfaces for geometric errors or edge connectivity. 
• Split and trim the surfaces symmetrically and delete one of the equal half. 

         

• Mesh(Trias) the entire surfaces maintaining the quality criteria.
• Reflect the mesh and apply equivalence to connect the mesh.

           

• Create Tetra mesh from the shell mesh.

         

• Check for tet collapse.

        

                           Model-2

• Select the solid component for Quick tetra by providing input parameters.

           

• Check for tet collapse.

       

• Clear the deviations by translating the element nodes manually.

           

                                       Model-3

• Select the solid component for Volume tetra by providing input parameters.

        

• Each component are separately meshed by Volume tetra option.

             

• Symmetrical solids can be meshed by half and reflected.
• Mesh can be joined by equivalence.

        

• Final Model:

        

RESULT:

• All the models are tetra meshed by different methods.
• There is a 100000 nodes limit for HyperWorks Student Edition, therefore the following mesh is removed from model-3.