Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements

Materials capable of exhibiting inherent morphing are rare and typically reliant on chemical properties. The resulting diffusion-driven shape adaptability is slow and limited to specific environmental conditions. In contrast, natural composites, such as those found in carnivorous plants, have evolve...

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Main Authors: Riley, Katherine S., Le Ferrand, Hortense, Arrieta, Andres F.
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/140258
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1402582020-06-01T10:13:57Z Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements Riley, Katherine S. Le Ferrand, Hortense Arrieta, Andres F. School of Materials Science & Engineering Engineering::Materials Programmable Structures Bistability Materials capable of exhibiting inherent morphing are rare and typically reliant on chemical properties. The resulting diffusion-driven shape adaptability is slow and limited to specific environmental conditions. In contrast, natural composites, such as those found in carnivorous plants, have evolved hierarchical architectures displaying remarkably fast adaptation in response to environmental stimuli. These biological materials have inspired the fabrication of snapping composite shells through the careful design of the internal microstructure of synthetic materials by magnetic alignment of reinforcements. The ability to accurately model such programmable materials using finite element analysis (FEA) is necessary to facilitate the design optimization of the resulting structures. Using similar material parameters as explored in previous experimental studies, we employ nonlinear FEA to investigate the effects of introducing curvilinear spatially distributed micro-reinforcements on the deformation of a shell with an unusual bioinspired geometry. The FEA model is subject to experimental validation with magnetically aligned specimens. Comparison to a traditional [90/0] composite layup demonstrates the advantages of magnetically aligned reinforcements to achieve complex, snapping morphing structures with tailored characteristics. 2020-05-27T09:15:26Z 2020-05-27T09:15:26Z 2018 Journal Article Riley, K. S., Le Ferrand, H., & Arrieta, A. F. (2018). Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements. Smart Materials and Structures, 27(11), 114003-. doi:10.1088/1361-665x/aad797 0964-1726 https://hdl.handle.net/10356/140258 10.1088/1361-665X/aad797 2-s2.0-85056142497 11 27 en Smart Materials and Structures © 2018 IOP Publishing Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Materials
Programmable Structures
Bistability
spellingShingle Engineering::Materials
Programmable Structures
Bistability
Riley, Katherine S.
Le Ferrand, Hortense
Arrieta, Andres F.
Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements
description Materials capable of exhibiting inherent morphing are rare and typically reliant on chemical properties. The resulting diffusion-driven shape adaptability is slow and limited to specific environmental conditions. In contrast, natural composites, such as those found in carnivorous plants, have evolved hierarchical architectures displaying remarkably fast adaptation in response to environmental stimuli. These biological materials have inspired the fabrication of snapping composite shells through the careful design of the internal microstructure of synthetic materials by magnetic alignment of reinforcements. The ability to accurately model such programmable materials using finite element analysis (FEA) is necessary to facilitate the design optimization of the resulting structures. Using similar material parameters as explored in previous experimental studies, we employ nonlinear FEA to investigate the effects of introducing curvilinear spatially distributed micro-reinforcements on the deformation of a shell with an unusual bioinspired geometry. The FEA model is subject to experimental validation with magnetically aligned specimens. Comparison to a traditional [90/0] composite layup demonstrates the advantages of magnetically aligned reinforcements to achieve complex, snapping morphing structures with tailored characteristics.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Riley, Katherine S.
Le Ferrand, Hortense
Arrieta, Andres F.
format Article
author Riley, Katherine S.
Le Ferrand, Hortense
Arrieta, Andres F.
author_sort Riley, Katherine S.
title Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements
title_short Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements
title_full Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements
title_fullStr Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements
title_full_unstemmed Modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements
title_sort modeling of snapping composite shells with magnetically aligned bio-inspired reinforcements
publishDate 2020
url https://hdl.handle.net/10356/140258
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