Static and Modal Response of Curved Honeycomb Metastructure Panels
Riccardo AUGELLO, Erasmo CARRERA
Abstract. The response of a metastucure panel depends on how its internal architecture interacts with the overall geometry. This work examines the effect of initial curvature on a honeycomb sandwich panel using a refined two-dimensional finite element model based on the Carrera Unified Formulation. The skins and cellular walls are represented within a common kinematic description, with Lagrange expansions resolving displacement variations through their local thickness. Three configurations are compared while keeping the nominal dimensions, constituent material, honeycomb topology and support conditions unchanged. The static assessment considers an imposed transverse displacement, whereas the dynamic assessment compares the natural frequencies and mode shapes of panels clamped along one edge. A shallow curvature of 10⁻⁴ mm⁻¹ produces frequency differences below 0.2% relative to the flat panel. Increasing the curvature to 10⁻³ mm⁻¹ gives a nonuniform change in the reported spectrum: the third frequency increases by 4.82%, while the fourth decreases by 14.29%. The displacement and stress fields also reveal changes in the static response. These results identify curvature as a mode-dependent design variable and illustrate a unified modeling route for resolving the interaction between cellular walls and facesheets.
Keywords
Curved Panels, Honeycomb Metastructures, Static Analysis, Free Vibration, Carrera Unified Formulation
Published online 11/8/2026, 6 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Riccardo AUGELLO, Erasmo CARRERA, Static and Modal Response of Curved Honeycomb Metastructure Panels, Materials Research Proceedings, Vol. 73, pp 85-90, 2026
DOI: https://doi.org/10.21741/9781644904459-17
The article was published as article 17 of the book Mechanics of Advanced Materials and Structures
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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