The Isogeometric Segmentation Pipeline

Michael Pauley, Dang-Manh Nguyen, David Mayer, Jaka Špeh, Oliver Weeger, Bert Jüttler
  • January 2015, Springer Science + Business Media
  • DOI: 10.1007/978-3-319-23315-4_3

A pipeline for converting CAD objects into "cubes" that can used by Isogeometric Analysis

What is it about?

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 nonuniform 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.

Why is it important?

This enables that simulations for CAD objects can be made automatic.


Dr Dang-Manh Nguyen
University of Florida

Related to Finite Element Method meshing generation

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