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Tailored twist morphing achieved using graded bend–twist metamaterials

Huaiyuan Gu Orcid Logo, Javad Taghipour, Alexander Shaw Orcid Logo, Mohammadreza Amoozgar Orcid Logo, Jiaying Zhang, Chen Wang, Michael Friswell

Composite Structures, Volume: 300, Start page: 116151

Swansea University Authors: Javad Taghipour, Alexander Shaw Orcid Logo, Michael Friswell

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Abstract

This work develops a morphing concept that utilises a metamaterial as the passive morphing device for helicopter blades. The metamaterials are created with bend–twist coupling, which enable the blade twist under prescribed bending loads. Finite element analysis (FEA) is performed to investigate the...

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Published in: Composite Structures
ISSN: 0263-8223
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa60970
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spelling v2 60970 2022-08-30 Tailored twist morphing achieved using graded bend–twist metamaterials dc7cba835218dde37fe7f447962d4058 Javad Taghipour Javad Taghipour true false 10cb5f545bc146fba9a542a1d85f2dea 0000-0002-7521-827X Alexander Shaw Alexander Shaw true false 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 2022-08-30 FGSEN This work develops a morphing concept that utilises a metamaterial as the passive morphing device for helicopter blades. The metamaterials are created with bend–twist coupling, which enable the blade twist under prescribed bending loads. Finite element analysis (FEA) is performed to investigate the influence of the unit cell configurations on the coupling properties of the metamaterials. The numerical models are then validated experimentally through a set of bending tests conducted with additively manufactured prototypes. Finally, the validated model is used to design a graded metamaterial, where the cell aspect ratio gradually changes along the blade span, providing unique bend–twist coupling and allowing for tailored twist to be obtained. The results suggest the graded metamaterials are capable of introducing optimised nonlinear twists to the blade during different flight conditions including both hover and forward flight. Journal Article Composite Structures 300 116151 Elsevier BV 0263-8223 Metamaterial; Morphing; Bend–twist coupling; Composite rotor blade; FE analysis 15 11 2022 2022-11-15 10.1016/j.compstruct.2022.116151 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University The authors acknowledge funding from the European Union’s Horizon 2020 project ‘Shape Adaptive Blades for Rotorcraft Efficiency (SABRE)’ , under grant agreement 723491. 2022-09-21T11:58:21.4882722 2022-08-30T11:25:39.9694496 College of Engineering Engineering Huaiyuan Gu 0000-0001-9562-5326 1 Javad Taghipour 2 Alexander Shaw 0000-0002-7521-827X 3 Mohammadreza Amoozgar 0000-0003-1670-9762 4 Jiaying Zhang 5 Chen Wang 6 Michael Friswell 7 60970__25172__1b80758df8e94dc287806cc01702047e.pdf 60970_VoR.pdf 2022-09-21T11:57:40.2924340 Output 3029225 application/pdf Version of Record true © 2022 The Authors. This is an open access article under the CC BY license true eng http://creativecommons.org/licenses/by/4.0/
title Tailored twist morphing achieved using graded bend–twist metamaterials
spellingShingle Tailored twist morphing achieved using graded bend–twist metamaterials
Javad Taghipour
Alexander Shaw
Michael Friswell
title_short Tailored twist morphing achieved using graded bend–twist metamaterials
title_full Tailored twist morphing achieved using graded bend–twist metamaterials
title_fullStr Tailored twist morphing achieved using graded bend–twist metamaterials
title_full_unstemmed Tailored twist morphing achieved using graded bend–twist metamaterials
title_sort Tailored twist morphing achieved using graded bend–twist metamaterials
author_id_str_mv dc7cba835218dde37fe7f447962d4058
10cb5f545bc146fba9a542a1d85f2dea
5894777b8f9c6e64bde3568d68078d40
author_id_fullname_str_mv dc7cba835218dde37fe7f447962d4058_***_Javad Taghipour
10cb5f545bc146fba9a542a1d85f2dea_***_Alexander Shaw
5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell
author Javad Taghipour
Alexander Shaw
Michael Friswell
author2 Huaiyuan Gu
Javad Taghipour
Alexander Shaw
Mohammadreza Amoozgar
Jiaying Zhang
Chen Wang
Michael Friswell
format Journal article
container_title Composite Structures
container_volume 300
container_start_page 116151
publishDate 2022
institution Swansea University
issn 0263-8223
doi_str_mv 10.1016/j.compstruct.2022.116151
publisher Elsevier BV
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description This work develops a morphing concept that utilises a metamaterial as the passive morphing device for helicopter blades. The metamaterials are created with bend–twist coupling, which enable the blade twist under prescribed bending loads. Finite element analysis (FEA) is performed to investigate the influence of the unit cell configurations on the coupling properties of the metamaterials. The numerical models are then validated experimentally through a set of bending tests conducted with additively manufactured prototypes. Finally, the validated model is used to design a graded metamaterial, where the cell aspect ratio gradually changes along the blade span, providing unique bend–twist coupling and allowing for tailored twist to be obtained. The results suggest the graded metamaterials are capable of introducing optimised nonlinear twists to the blade during different flight conditions including both hover and forward flight.
published_date 2022-11-15T11:58:20Z
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score 10.919779