Automatic hexahedral-dominant meshing for decomposed geometries of complex components

Benoit Lecallard, Christopher M. Tierney, Trevor T. Robinson, Cecil G. Armstrong, Liang Sun, Declan C. Nolan, Alexander E. Sansom

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
169 Downloads (Pure)


An equivalent non-manifold cellular model is used to enrich manifold decompositions of a CAD model to create a model suitable for finite element analysis. Thin-sheet and long-slender decomposition tools are integrated around the common data structure in order to automatically define a meshing recipe based on analysis attributes identified during the decomposition. Virtual topology operations are used to replicate the hard geometry splits in the non-manifold representation and create a robust bidirectional mapping between manifold and non-manifold representations. Adjacency information extracted from the non-manifold cellular model, alongside the appropriate analysis attributes and linear integer programming methods, are used to define a hex-dominant meshing recipe, which can then be applied to automatically generate a mesh.

Original languageEnglish
Pages (from-to)846-863
Number of pages18
JournalComputer-Aided Design and Applications
Issue number5
Publication statusPublished (in print/issue) - 1 Jan 2019


  • Database
  • Hexahedral-dominant meshing
  • Non-manifold


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