Cylindrical helical cell metamaterial with large strain zero Poisson’s ratio for shape morphing analysis

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dc.contributor.authorQin, Qing
dc.contributor.authorDayyani, Iman
dc.date.accessioned2023-10-17T10:44:48Z
dc.date.available2023-10-17T10:44:48Z
dc.date.issued2023-09-22
dc.description.abstractIn this paper, a novel cylindrical metamaterial with helical cell exhibiting zero Poisson's ratio (ZPR) in two different directions is introduced. Detailed Computer-aided design modelling of a curved optimised spring element is demonstrated for numerical and experimental analysis. High fidelity finite element models are developed to assess the homogenisation study of Poisson's ratios, normalised Young's modulus and torsion behaviour, demonstrating the curvature effect and independency of mechanical behaviour of cylindrical optimised spring element metamaterial from tessellation numbers. Buckling and frequency analysis of the cylindrical metamaterial with spring element are compared with equivalent shell cylinders. Moreover, experimental analysis is performed to validate the large strain ZPR and deformation mechanism demonstrated in numerical simulations. Finally, radical shape morphing analysis under different bending conditions for cylindrical metamaterial with helical cell is investigated, including deformation and actuation energy and compared with positive and negative Poisson's ratio cylinders formed by honeycomb and auxetic cells.en_UK
dc.identifier.citationQin Q, Dayyani I. (2023) Cylindrical helical cell metamaterial with large strain zero Poisson’s ratio for shape morphing analysis. Smart Materials and Structures, Volume 32, Issue 10, October 2023, Article number 105039en_UK
dc.identifier.issn0964-1726
dc.identifier.urihttps://doi.org/10.1088/1361-665X/acf96c
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20385
dc.language.isoenen_UK
dc.publisherIOP Publishingen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectcylindrical mechanical metamaterialen_UK
dc.subjectlarge strain zero Poisson’s ratioen_UK
dc.subject3D helical springen_UK
dc.subject3D printingen_UK
dc.subjectshape morphingen_UK
dc.titleCylindrical helical cell metamaterial with large strain zero Poisson’s ratio for shape morphing analysisen_UK
dc.typeArticleen_UK

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