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In-plane elasticity of beetle elytra inspired sandwich cores

Xindi Yu, Qicheng Zhang, Athina Kontopoulou, Giuliano Allegri, Mark Schenk, Fabrizio Scarpa

Composite Structures, Volume: 300, Start page: 116155

Swansea University Author: Qicheng Zhang

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Abstract

The Beetle Elytron Plate (BEP) is a new class of biomimetic sandwich core that features excellent compressive strength, energy absorption capacity and flexural properties. These characteristics make BEPs suitable as potential replacements of classical honeycomb cores in sandwich panels. This work de...

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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/cronfa60972
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first_indexed 2022-09-16T15:28:08Z
last_indexed 2023-01-13T19:21:29Z
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spelling 2022-09-16T16:30:56.8029615 v2 60972 2022-08-30 In-plane elasticity of beetle elytra inspired sandwich cores 8ff09bdb2a479fcc8d203f099b148f69 Qicheng Zhang Qicheng Zhang true false 2022-08-30 FGSEN The Beetle Elytron Plate (BEP) is a new class of biomimetic sandwich core that features excellent compressive strength, energy absorption capacity and flexural properties. These characteristics make BEPs suitable as potential replacements of classical honeycomb cores in sandwich panels. This work describes the behaviour of the in-plane engineering elastic constants of parametric BEP topologies for the first time. The beetle elytron cores configurations are simulated using Finite Element models, including full-scale models and representative unit cells with periodic boundary conditions for asymptotic homogenization. The models are also benchmarked against experimental results obtained from ASTM tensile tests related to the in-plane Young’s modulus, Poisson’s ratio and shear modulus. The benchmarked models are then used to perform a parametric analysis against the geometry characteristics of the cellular configurations. Results obtained from this work will provide a solid foundation for further research on BEP structures and expand their applications into wider engineering fields. Journal Article Composite Structures 300 116155 Elsevier BV 0263-8223 In-plane elastic engineering constants; Beetle elytron; Biomimetic sandwich structure; Honeycomb structure; Representative volume element; Periodic boundary conditions 15 11 2022 2022-11-15 10.1016/j.compstruct.2022.116155 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2022-09-16T16:30:56.8029615 2022-08-30T11:32:19.3878529 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Xindi Yu 1 Qicheng Zhang 2 Athina Kontopoulou 3 Giuliano Allegri 4 Mark Schenk 5 Fabrizio Scarpa 6 60972__25154__cfc500a89b3f4884b6622a0392e8c031.pdf 60972_VoR.pdf 2022-09-16T16:26:32.3570926 Output 19101798 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 In-plane elasticity of beetle elytra inspired sandwich cores
spellingShingle In-plane elasticity of beetle elytra inspired sandwich cores
Qicheng Zhang
title_short In-plane elasticity of beetle elytra inspired sandwich cores
title_full In-plane elasticity of beetle elytra inspired sandwich cores
title_fullStr In-plane elasticity of beetle elytra inspired sandwich cores
title_full_unstemmed In-plane elasticity of beetle elytra inspired sandwich cores
title_sort In-plane elasticity of beetle elytra inspired sandwich cores
author_id_str_mv 8ff09bdb2a479fcc8d203f099b148f69
author_id_fullname_str_mv 8ff09bdb2a479fcc8d203f099b148f69_***_Qicheng Zhang
author Qicheng Zhang
author2 Xindi Yu
Qicheng Zhang
Athina Kontopoulou
Giuliano Allegri
Mark Schenk
Fabrizio Scarpa
format Journal article
container_title Composite Structures
container_volume 300
container_start_page 116155
publishDate 2022
institution Swansea University
issn 0263-8223
doi_str_mv 10.1016/j.compstruct.2022.116155
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description The Beetle Elytron Plate (BEP) is a new class of biomimetic sandwich core that features excellent compressive strength, energy absorption capacity and flexural properties. These characteristics make BEPs suitable as potential replacements of classical honeycomb cores in sandwich panels. This work describes the behaviour of the in-plane engineering elastic constants of parametric BEP topologies for the first time. The beetle elytron cores configurations are simulated using Finite Element models, including full-scale models and representative unit cells with periodic boundary conditions for asymptotic homogenization. The models are also benchmarked against experimental results obtained from ASTM tensile tests related to the in-plane Young’s modulus, Poisson’s ratio and shear modulus. The benchmarked models are then used to perform a parametric analysis against the geometry characteristics of the cellular configurations. Results obtained from this work will provide a solid foundation for further research on BEP structures and expand their applications into wider engineering fields.
published_date 2022-11-15T04:19:31Z
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score 10.993443