@conference {1847, title = {Parametric Reconstruction of Advanced Glass Fiber-reinforced Polymer Composites from X-ray Images}, year = {2018}, address = {Wels, Austria}, abstract = {A novel approach to the reconstruction of glass fiber-reinforced polymers (GFRP) from X-ray micro-computed tomography (μCT) data is presented. The traditional fiber analysis workflow requires complete sample reconstruction, pre-processing and segmentation, followed by the analysis of fiber distribution, orientation, and other features of interest. Each step in the chain introduces errors that propagate through the pipeline and impair the accuracy of the estimation of those features. In the approach presented in this paper, we combine iterative reconstruction techniques and a priori knowledge about the sample, to reconstruct the volume and estimate the orientation of the fibers simultaneously. Fibers are modeled using rigid cylinders in space whose orientation and position is then iteratively refined. The output of the algorithm is a non voxel-based dataset of the fibers{\textquoteright} parametric representation, allowing to directly assess fiber features and distribution characteristics and to simulate the resulting material properties.}, keywords = {GFRP, Materials Science, Modeling of Microstructures, Parametric Reconstruction, Tomography, {\textmu}CT}, author = {Tim Elberfeld and Jan De Beenhouwer and Arnold Jan den Dekker and Christoph Heinzl and Jan Sijbers} }