Novel Modeling Technique of Metamaterials Using One-Dimensional Finite Elements
Riccardo Augello, Erasmo Carrera
Abstract. Geometry-driven metamaterials offer negative Poisson’s ratios, vanishing shear stiffness, and programmable multi-stability, but their slender struts and large rotations overwhelm conventional finite-element meshes. A streamlined framework that couples classical finite elements with the Carrera Unified Formulation (CUF) resolves cross-sectional deformation through higher-order beam expansions, reproducing three-dimensional behaviour while retaining a one-dimensional model. Contrary to the conventional beam definition, in this study the structural beam axis is aligned with the thickness of the sandwich panel, while the cross-section extends across its width. This particular application is useful to highlight the flexibility of CUF in modelling any structural configuration as an advanced 1D element. Representative static linear analyses are presented of the hexagonal metamaterial design.
Keywords
Published online 7/20/2026, 5 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Riccardo Augello, Erasmo Carrera, Novel Modeling Technique of Metamaterials Using One-Dimensional Finite Elements, Materials Research Proceedings, Vol. 69, pp 1379-1383, 2026
DOI: https://doi.org/10.21741/9781644904251-240
The article was published as article 240 of the book CEAS – AIDAA Conference 2025
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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