Shape optimisation and buckling analysis of large strain Zero Poisson’s Ratio fish-cells metamaterial for morphing structures

Simple item page
dc.contributor.authorJha, Ashutosh
dc.contributor.authorDayyani, Iman
dc.date.accessioned2021-04-20T14:48:32Z
dc.date.available2021-04-20T14:48:32Z
dc.date.issued2021-04-17
dc.description.abstractThis article investigates the potential of a large strain morphing skin based on a Zero Poisson’s Ratio (ZPR) Fish-Cells metamaterial. A multi-objective genetic algorithm shape optimisation is performed to improve the ZPR characteristics of the Fish-Cells metamaterial. High-fidelity finite element models are developed to assess the performance of the optimised Fish-Cells metamaterial for large non-linear strains. A detailed joint design study is devised to obtain consistent ZPR behaviour over a maximum strain range. Trends of Poisson’s ratio, effective elastic modulus and von-mises stress for the different geometries are discussed in detail. Results provide valuable insight into non-linear behaviour of the Fish-Cells ZPR metamaterial. Furthermore, experimental investigations are conducted to verify the enhanced mechanical behaviour of shape optimised ZPR samples. Linear buckling analysis is performed to assess the performance of the optimised metamaterial under compressive loads. Finally, a preliminary study is conducted to evaluate the performance of the shape optimised ZPR metamaterial as a candidate skin for a morphing aircraft wing.en_UK
dc.identifier.citationJha A, Dayyani I. (2021) Shape optimisation and buckling analysis of large strain Zero Poisson’s Ratio fish-cells metamaterial for morphing structures. Composite Structures, Volume 268, July 2021, Article number 113995en_UK
dc.identifier.issn0263-8223
dc.identifier.urihttps://doi.org/10.1016/j.compstruct.2021.113995
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16602
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectMulti-Objective Shape Optimisationen_UK
dc.subjectLarge Strain Zero Poisson’s Ratio (ZPR)en_UK
dc.subjectMechanical Metamaterialsen_UK
dc.subjectJoint Designen_UK
dc.subjectExperimental Investigationen_UK
dc.subjectBuckling Analysisen_UK
dc.subjectMorphing Skinen_UK
dc.titleShape optimisation and buckling analysis of large strain Zero Poisson’s Ratio fish-cells metamaterial for morphing structuresen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Shape_optimisation_and_buckling_analysis-2021.pdf
Size:
2.77 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)