Description

The aim of the method proposed here is to show the possibility of generating adaptive surface meshes suitable for the finite element method, directly from an approximated boundary representation (STL file) of an object created with CAD software. The boundary representation is composed of a simple triangulation of the surface of the object. The size adaptation is made considering geometrical approximation and with respect to an isotropic size map provided by the mesh pre-optimization process. The mesh can be used "as is" for a finite element computation (with shell elements), or can be used as a surface mesh to initiate a volume meshing algorithm. The principle used to generate the mesh is based on the Delaunay method, which is associated with refinement algorithms, and smoothing.


Example 1 : Fan

Example 2 : Guitar