Unconstrained paving and plastering method for generating finite element meshes
| DWPI Title: Method for generating quadrilateral or hexahedral mesh used in industrial applications, involves forming quadrilateral and hexahedral elements where two or three unconstrained hexahedral layers cross respectively |
| Abstract: Computer software for and a method of generating a conformal all quadrilateral or hexahedral mesh comprising selecting an object with unmeshed boundaries and performing the following while unmeshed voids are larger than twice a desired element size and unrecognizable as either a midpoint subdividable or pave-and-sweepable polyhedra: selecting a front to advance; based on sizes of fronts and angles with adjacent fronts, determining which adjacent fronts should be advanced with the selected front; advancing the fronts; detecting proximities with other nearby fronts; resolving any found proximities; forming quadrilaterals or unconstrained columns of hexahedra where two layers cross; and establishing hexahedral elements where three layers cross. |
| Use: Method for generating quadrilateral or hexahedral mesh used in industrial applications. |
| Advantage: Since the previously positioned nodes are not relocated, the need for smoothing after proximity resolution is decreased. Thus the computational expense of proximity resolution is decreased. |
| Novelty: The method involves determining which adjacent front is to be advanced with the selected front based on the size of fronts and angles with adjacent fronts. The selected and the determined adjacent fronts are advanced. Quadrilateral or unconstrained columns are formed where two unconstrained hexahedral layers cross. Hexahedral elements are established where three unconstrained hexahedral layers cross. The resulting object representing the physical item with quadrilateral or hexahedral mesh is outputted. |
| Filed: 9/5/2006 |
| Application Number: US2006515978A |
| Tech ID: SD 10085.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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