In-plane mechanical behavior of novel auxetic hybrid metamaterials
In-plane mechanical behavior of novel auxetic hybrid metamaterials
We present in this paper two novel concepts of hybrid metamaterials that combine a core unit cell of re-entrant or cross-chiral shape and lateral missing ribs. The first topology is a hybrid between an anti-tetrachiral and a missing rib (cross-chiral) configuration; the second one has a variable cross-chiral layout compared to the classical missing rib square structure. Their in-plane mechanical properties have been investigated from a parametric point of view using finite element (FE) simulations. The two classes of metamaterials have been benchmarked to obtain optimized designs and specific effective properties. Nonlinear simulations and experimental tests of the new re-entrant missing rib metamaterials featuring optimized geometry parameters have been performed to understand the behavior of these architectures under large deformations.
Cross, Deformation mechanism, In-plane mechanical property, Metamaterial, Missing rib, Re-entrant
Zhang, Wenjiao
3676d93b-2a84-4b5a-b7b0-da7f30b97a85
Zhao, Shuyuan
514dac6c-aafd-4d40-9856-5809934ba5c7
Scarpa, Fabrizio
684472c3-1a28-478a-a388-5fd896986c1d
Wang, Jinwu
e9efd6ab-49ee-421d-9e33-a08a37dd3e6e
Sun, Rujie
e3dad16d-6c79-4972-8378-edca28a3babd
18 January 2021
Zhang, Wenjiao
3676d93b-2a84-4b5a-b7b0-da7f30b97a85
Zhao, Shuyuan
514dac6c-aafd-4d40-9856-5809934ba5c7
Scarpa, Fabrizio
684472c3-1a28-478a-a388-5fd896986c1d
Wang, Jinwu
e9efd6ab-49ee-421d-9e33-a08a37dd3e6e
Sun, Rujie
e3dad16d-6c79-4972-8378-edca28a3babd
Zhang, Wenjiao, Zhao, Shuyuan, Scarpa, Fabrizio, Wang, Jinwu and Sun, Rujie
(2021)
In-plane mechanical behavior of novel auxetic hybrid metamaterials.
Thin-Walled Structures, 159, [107191].
(doi:10.1016/j.tws.2020.107191).
Abstract
We present in this paper two novel concepts of hybrid metamaterials that combine a core unit cell of re-entrant or cross-chiral shape and lateral missing ribs. The first topology is a hybrid between an anti-tetrachiral and a missing rib (cross-chiral) configuration; the second one has a variable cross-chiral layout compared to the classical missing rib square structure. Their in-plane mechanical properties have been investigated from a parametric point of view using finite element (FE) simulations. The two classes of metamaterials have been benchmarked to obtain optimized designs and specific effective properties. Nonlinear simulations and experimental tests of the new re-entrant missing rib metamaterials featuring optimized geometry parameters have been performed to understand the behavior of these architectures under large deformations.
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More information
Accepted/In Press date: 1 October 2020
e-pub ahead of print date: 24 October 2020
Published date: 18 January 2021
Keywords:
Cross, Deformation mechanism, In-plane mechanical property, Metamaterial, Missing rib, Re-entrant
Identifiers
Local EPrints ID: 486775
URI: http://eprints.soton.ac.uk/id/eprint/486775
ISSN: 0263-8231
PURE UUID: 8156a46c-2def-4bcc-b31d-cbd445923905
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Date deposited: 06 Feb 2024 17:33
Last modified: 17 Mar 2024 07:24
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Contributors
Author:
Wenjiao Zhang
Author:
Shuyuan Zhao
Author:
Fabrizio Scarpa
Author:
Jinwu Wang
Author:
Rujie Sun
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