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Composites with Re-Entrant Lattice: Effect of Filler on Auxetic Behaviour
This study is focused on the deformation behaviour of composites formed by auxetic lattice structures acting as a matrix based on the re-entrant unit-cell geometry with a soft filler, motivated by biomedical applications. Three-dimensional models of two types of the auxetic-lattice structures were m...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10610391/ https://www.ncbi.nlm.nih.gov/pubmed/37896322 http://dx.doi.org/10.3390/polym15204076 |
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author | Tashkinov, Mikhail Tarasova, Anastasia Vindokurov, Ilia Silberschmidt, Vadim V. |
author_facet | Tashkinov, Mikhail Tarasova, Anastasia Vindokurov, Ilia Silberschmidt, Vadim V. |
author_sort | Tashkinov, Mikhail |
collection | PubMed |
description | This study is focused on the deformation behaviour of composites formed by auxetic lattice structures acting as a matrix based on the re-entrant unit-cell geometry with a soft filler, motivated by biomedical applications. Three-dimensional models of two types of the auxetic-lattice structures were manufactured using filament deposition modelling. Numerical finite-element models were developed for computational analysis of the effect of the filler with different mechanical properties on the effective Poisson’s ratio and mechanical behaviour of such composites. Tensile tests of 3D-printed auxetic samples were performed with strain measurements using digital image correlation. The use of the filler phase with various elastic moduli resulted in positive, negative, and close-to-zero effective Poisson’s ratios. Two approaches for numerical measurement of the Poisson’s ratio were used. The failure probability of the two-phase composites with auxetic structure depending on the filler stiffness was investigated by assessing statistical distributions of stresses in the finite-elements models. |
format | Online Article Text |
id | pubmed-10610391 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-106103912023-10-28 Composites with Re-Entrant Lattice: Effect of Filler on Auxetic Behaviour Tashkinov, Mikhail Tarasova, Anastasia Vindokurov, Ilia Silberschmidt, Vadim V. Polymers (Basel) Article This study is focused on the deformation behaviour of composites formed by auxetic lattice structures acting as a matrix based on the re-entrant unit-cell geometry with a soft filler, motivated by biomedical applications. Three-dimensional models of two types of the auxetic-lattice structures were manufactured using filament deposition modelling. Numerical finite-element models were developed for computational analysis of the effect of the filler with different mechanical properties on the effective Poisson’s ratio and mechanical behaviour of such composites. Tensile tests of 3D-printed auxetic samples were performed with strain measurements using digital image correlation. The use of the filler phase with various elastic moduli resulted in positive, negative, and close-to-zero effective Poisson’s ratios. Two approaches for numerical measurement of the Poisson’s ratio were used. The failure probability of the two-phase composites with auxetic structure depending on the filler stiffness was investigated by assessing statistical distributions of stresses in the finite-elements models. MDPI 2023-10-13 /pmc/articles/PMC10610391/ /pubmed/37896322 http://dx.doi.org/10.3390/polym15204076 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Tashkinov, Mikhail Tarasova, Anastasia Vindokurov, Ilia Silberschmidt, Vadim V. Composites with Re-Entrant Lattice: Effect of Filler on Auxetic Behaviour |
title | Composites with Re-Entrant Lattice: Effect of Filler on Auxetic Behaviour |
title_full | Composites with Re-Entrant Lattice: Effect of Filler on Auxetic Behaviour |
title_fullStr | Composites with Re-Entrant Lattice: Effect of Filler on Auxetic Behaviour |
title_full_unstemmed | Composites with Re-Entrant Lattice: Effect of Filler on Auxetic Behaviour |
title_short | Composites with Re-Entrant Lattice: Effect of Filler on Auxetic Behaviour |
title_sort | composites with re-entrant lattice: effect of filler on auxetic behaviour |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10610391/ https://www.ncbi.nlm.nih.gov/pubmed/37896322 http://dx.doi.org/10.3390/polym15204076 |
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