Formation of pyramid elements for hexahedra to tetrahedra transitions
Journal Article
·
· Computer Methods in Applied Mechanics and Engineering
OSTI ID:751546
New algorithms are proposed for the modification of a mixed hexahedra-tetrahedra element mesh to maintain compatibility by the insertion of pyramid elements. Several methods for generation of the pyramids are presented involving local tetrahedral transformations and/or node insertion near the hex/tet interface. Local smoothing and topological operations improve the quality of the transition region. Results show superior performance of the resulting elements in a commercial finite element code over non-conforming interface conditions.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 751546
- Report Number(s):
- SAND2000-0494J; TRN: AH200020%%147
- Journal Information:
- Computer Methods in Applied Mechanics and Engineering, Other Information: Submitted to Computer Methods in Applied Mechanics and Engineering; PBD: 24 Feb 2000
- Country of Publication:
- United States
- Language:
- English
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