Design and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio

Nowadays, the development of 3D-printing technology makes it possible for fabricating metamaterials with distinctive mechanical properties. In this paper, we present a novel design of 3D hexa-chiral helical structure with negative Poisson’s ratio and systematically study its mechanical behaviors thr...

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Autores principales:	Chongxi Jiao, Gang Yan
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Metamaterial Auxetic material 3D chiral structure Negative Poisson’s ratio Elastic mechanical response Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/5e449331dc4c4d46904c6def595233e3
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spelling	oai:doaj.org-article:5e449331dc4c4d46904c6def595233e32021-11-20T04:55:41ZDesign and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio0264-127510.1016/j.matdes.2021.110219https://doaj.org/article/5e449331dc4c4d46904c6def595233e32021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521007747https://doaj.org/toc/0264-1275Nowadays, the development of 3D-printing technology makes it possible for fabricating metamaterials with distinctive mechanical properties. In this paper, we present a novel design of 3D hexa-chiral helical structure with negative Poisson’s ratio and systematically study its mechanical behaviors through experimental, theoretical, and numerical methods. In terms of structural design, besides geometric configurations, we propose a theoretical model to qualitatively analyze the relationship between geometric parameters and structural properties. For actual mechanical properties, an approximate method is presented to decouple the structural deformation based on marks’ displacements. With the assistance of quasi-static compression tests and finite element simulation, the relationship between geometric parameters and elastic mechanical properties is studied. The experimental results are in good agreement with the simulation results. Meanwhile, the special coupled compression-torsion deformation mode is also discussed. Finally, we briefly study the extension effect of the structure in a larger space through numerical simulations. These results are helpful to further optimize the geometric design for customized structural performance to a certain degree.Chongxi JiaoGang YanElsevierarticleMetamaterialAuxetic material3D chiral structureNegative Poisson’s ratioElastic mechanical responseMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110219- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Metamaterial Auxetic material 3D chiral structure Negative Poisson’s ratio Elastic mechanical response Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Metamaterial Auxetic material 3D chiral structure Negative Poisson’s ratio Elastic mechanical response Materials of engineering and construction. Mechanics of materials TA401-492 Chongxi Jiao Gang Yan Design and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio
description	Nowadays, the development of 3D-printing technology makes it possible for fabricating metamaterials with distinctive mechanical properties. In this paper, we present a novel design of 3D hexa-chiral helical structure with negative Poisson’s ratio and systematically study its mechanical behaviors through experimental, theoretical, and numerical methods. In terms of structural design, besides geometric configurations, we propose a theoretical model to qualitatively analyze the relationship between geometric parameters and structural properties. For actual mechanical properties, an approximate method is presented to decouple the structural deformation based on marks’ displacements. With the assistance of quasi-static compression tests and finite element simulation, the relationship between geometric parameters and elastic mechanical properties is studied. The experimental results are in good agreement with the simulation results. Meanwhile, the special coupled compression-torsion deformation mode is also discussed. Finally, we briefly study the extension effect of the structure in a larger space through numerical simulations. These results are helpful to further optimize the geometric design for customized structural performance to a certain degree.
format	article
author	Chongxi Jiao Gang Yan
author_facet	Chongxi Jiao Gang Yan
author_sort	Chongxi Jiao
title	Design and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio
title_short	Design and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio
title_full	Design and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio
title_fullStr	Design and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio
title_full_unstemmed	Design and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio
title_sort	design and elastic mechanical response of a novel 3d-printed hexa-chiral helical structure with negative poisson’s ratio
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/5e449331dc4c4d46904c6def595233e3
work_keys_str_mv	AT chongxijiao designandelasticmechanicalresponseofanovel3dprintedhexachiralhelicalstructurewithnegativepoissonsratio AT gangyan designandelasticmechanicalresponseofanovel3dprintedhexachiralhelicalstructurewithnegativepoissonsratio
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Design and elastic mechanical response of a novel 3D-printed hexa-chiral helical structure with negative Poisson’s ratio

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