Diffuse manifold learning of the geometry of woven reinforcements in composites

作者：Madra Anna; Breitkopf Piotr; Raghavan Balaji; Trochu Francois

来源：Comptes Rendus Mecanique, 2018, 346(7): 532-538.

DOI：10.1016/j.crme.2018.04.008

• Model reduction
• Diffuse Approximation
• Composites
• X-ray microtomography

When attempting to build mesoscale geometric models of woven reinforcements in composites based on X-ray microtomography data, we frequently run into ambiguous situations due to noise, particularly in contact zones between fiber tows, resulting in inadmissible cross-sectional shapes. We propose here a custom-built shape-manifold approach based on kernel PCA, k-means classification and Diffuse Approximation to identify, "repair" such badly segmented shapes in the feature space, and finally recover admissible shapes in the original space.

• 出版日期2018-7
• 单位MIT