Hex vs Tet Mesh Comparisons
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Objective:
- Comparison of Hexahedral versus Tetrahedral meshing algorithms Orthopaedic applications
Progress:
- Currently evaluating open source tetrahedral meshing algorithms
- VTK
- Slivers exist in resulting mesh
- Netgen
- LGPL license
- Issues have been found regarding invalid memory references
- Does not always converge to a solution
- Difficult to specify desired mesh density
- Tetgen
- Non commercial license. Commercial license can be purchased
- Has been used for medical applications including heart, vertebral body, and head meshes
- VTK
- Performed an initial comparison of hexahedral versus tetrahedral algorithms
- Study included comparison of hexahedral and tetrahedral meshing tools
- Evaluated the results based the following criteria
- Time to generate the mesh
- mesh quality
- Results of a static load analysis versus the number of elements
To Do:
- Evaluate other tetrahedral meshing algorithms
- Complete comparison study of hexahedral and tetrahedral tools.
Key Investigators:
- Iowa: Nicole DeVries, Nicole Grosland, Vincent Magnotta
Links:
Images: