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Sharp edge filleting of enriched FE meshes

Communication avec acte
Author
GIANNINI, Franca
73335 Istituto di Matematica Applicata e Tecnologie Informatiche [IMATI-CNR]
MIKCHEVITECH, Alexei
FALCIDIENO, Bianca
MARC, Raphael
ccPERNOT, Jean-Philippe
178374 Laboratoire des Sciences de l'Information et des Systèmes : Ingénierie Numérique des Systèmes Mécaniques [LSIS- INSM]
ccLOU, Ruding
ccVERON, Philippe

URI
http://hdl.handle.net/10985/9716
Date
2012

Abstract

Nowadays, the use of Computer-Aided Engineering (CAE) system in product design has become mainstream. However, the adopted process from Computer-Aided Design (CAD) product definition to numerical simulation could be further improved to avoid going backward to the CAD model for model modification. To this aim, we propose a generic mesh modification operator whose architecture is detailed in this paper. A new instance of this operator for filleting FE tetrahedral meshes is also proposed. The filleting operator works in two main steps. The external skin of the tetrahedral mesh is first deformed to round user-specified sharp edges. Then, in the filleting area, the positions of the inner nodes are relaxed to improve the aspect ratio of the mesh elements. Several examples illustrate the interest of such a CAD-less approach.

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