engleski

Modelling within the CAD environment for efficient FE meshing

This paper presents an approach to FEM pre- and post- processing by means of the widely used CAD program AutoCAD. An object oriented paradigm in defing structure geometry enables a high level of data abstraction in the pre-processing phase. Mesh generation, as well as generation of boundary conditions and loads which are defined over the geometrical entities, are performed using the, so called, block mapping technique. A finite element mesh created in this way is well-conditioned and allows the use of different finite element types which is one of the best features of mapping techniques. The wide open architecture of AutoCAD also enables fast definition of the input data.

finite element mesh; block mapping technique; mapping techniques; AutoCAD

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