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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 21
ADVANCES IN POST AND PREPROCESSING FOR FINITE ELEMENT TECHNOLOGY
Edited by: M. Papadrakakis and B.H.V. Topping
Paper IV.7

An Auto-Adaptive Surface Meshing Software for a CAD Environment

F. Noel, J.C. Leon and P. Trompette

Laboratoire des Sols, Solides, Structures, Grenoble, France

Full Bibliographic Reference for this paper
F. Noel, J.C. Leon, P. Trompette, "An Auto-Adaptive Surface Meshing Software for a CAD Environment", in M. Papadrakakis, B.H.V. Topping, (Editors), "Advances in Post and Preprocessing for Finite Element Technology", Civil-Comp Press, Edinburgh, UK, pp 205-213, 1994. doi:10.4203/ccp.21.4.7
Abstract
In building the finite element meshes of surfacic structures, some defects inherent to a wide class of mesh generators but also linked to geometric representations of industrial structures are pointed out. These defects are corrected by the use of specific computer tools dedicated to the surfacic mesh adaptation. Amongst these tools the main one is the possibility of moving the nodes anywhere on the surface without the constraint for a node to stay on its original patch. Also some topologic mesh changes allow the decrease or the increase of the number of nodes, locally or globally. All defects of a given mesh will have been previously corrected so that its topology may correspond to that of the given piece (e.g. elimination of holes, partial covering... which often originate from a structure C.A.D. definition in which a very large number of patches are used).

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