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

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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 - 1 Jan 2019


  • Database
  • Hexahedral-dominant meshing
  • Non-manifold

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    Lecallard, B., Tierney, C. M., Robinson, T. T., Armstrong, C. G., Sun, L., Nolan, D. C., & Sansom, A. E. (2019). Automatic hexahedral-dominant meshing for decomposed geometries of complex components. Computer-Aided Design and Applications, 16(5), 846-863.