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Proceedings of CAD'16, 2016, 268-273
Mesoscale Modeling of Cellular Materials for Finite Element Analysis

Michele Bici, Francesca Campana, Micaela de Michelis, Sapienza University, Italy

Abstract. Mesoscale modeling of cellular materials is not strictly related to tomography reconstruction, but it can be applied also in Finite Element Analysis: (a) to better understand load distribution at the interfaces; (b) to develop and calibrate material models; (c) for sensitivity analysis to different loads or shape parameters. This paper aims to survey some of the most applied techniques to model cellular materials at a mesoscale level discussing their advantages and disadvantages for modeling in Finite Element Analysis. Among them, two of the most applied techniques, the Voronoi approach and the reverse engineering reconstruction, are here applied to simulate the behavior of aluminum foams under compression. These applications compared to some experimental evidences confirm the capability of mesoscale analysis, highlighting possible enhancement of the modeling techniques.

Keywords. Cellular materials, Finite Element Analysis, Voronoi Diagram, Representative Volume Element, Reverse Engineering

DOI: 10.14733/cadconfP.2016.268-273