Automatic 3D Mesh Generation of Multiple Domains for Topology Optimization Methods

This paper presents an automatic approach to generate unstructured tetrahedral meshes in the context of composite or heterogeneous geometry. Using B-Rep concepts and specific adaptations of advancing front mesh generation algorithms, this approach guarantees, in a simple and natural way, mesh continuity and conformity across the interior boundaries of a composite domain. This method presents a great potential in various fields of application such as finite element simulations (in the case of heterogeneous materials and assemblies for example), animation and visualization (medical imaging for example). After a description of the approach and its context, the paper presents a potential application in the specific domain of topology optimization.