The Isogeometric Segmentation Pipeline
- Cite this paper as:
- Pauley M., Nguyen DM., Mayer D., Špeh J., Weeger O., Jüttler B. (2015) The Isogeometric Segmentation Pipeline. In: Jüttler B., Simeon B. (eds) Isogeometric Analysis and Applications 2014. Lecture Notes in Computational Science and Engineering, vol 107. Springer, Cham
We present a pipeline for the conversion of 3D models into a form suitable for isogeometric analysis (IGA). The input into our pipeline is a boundary represented 3D model, either as a triangulation or as a collection of trimmed non-uniform rational B-spline (NURBS) surfaces. The pipeline consists of three stages: computer aided design (CAD) model reconstruction from a triangulation (if necessary); segmentation of the boundary-represented solid into topological hexahedra; and volume parameterization. The result is a collection of volumetric NURBS patches. In this paper we discuss our methods for the three stages, and demonstrate the suitability of the result for IGA by performing stress simulations with examples of the output.