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Experimental and Numerical Study on Withdrawal Strength of Different Types of Auxetic Dowels for Furniture Joints

Studies on the application of auxetic metamaterials and structures in furniture joints are very limited. However, they have huge potential for use in ready-to-assemble furniture. This study aimed to design and produce different types of auxetic dowels in 3D printing technology, and experimentally an...

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Detalles Bibliográficos
Autores principales: Kasal, Ali, Kuşkun, Tolga, Smardzewski, Jerzy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7579455/
https://www.ncbi.nlm.nih.gov/pubmed/32987710
http://dx.doi.org/10.3390/ma13194252
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author Kasal, Ali
Kuşkun, Tolga
Smardzewski, Jerzy
author_facet Kasal, Ali
Kuşkun, Tolga
Smardzewski, Jerzy
author_sort Kasal, Ali
collection PubMed
description Studies on the application of auxetic metamaterials and structures in furniture joints are very limited. However, they have huge potential for use in ready-to-assemble furniture. This study aimed to design and produce different types of auxetic dowels in 3D printing technology, and experimentally and numerically analyze the withdrawal strength of these dowels. In the scope of the study, 24 auxetic dowels with different types and size of inclusions, different diameter of holes, and a non-auxetic reference dowel were designed and produced with appropriate muffs. Dowels were 3D printed from polyamide (PA12). Poisson’s ratios, withdrawal strength, contact pressures, and friction coefficients of dowels were determined theoretically by means of numerical analyses and real static compression tests. After the pre-production of dowels, the dowels with triangular inclusions have not been found to have sufficient strength and stiffness. Withdrawal strength of dowels decreased as the size of inclusions is decreased, or dowel hole diameter is increased. Furthermore, contact pressures and stresses in auxetic dowels were considerably lower than non-auxetic dowels under the withdrawal force.
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spelling pubmed-75794552020-10-29 Experimental and Numerical Study on Withdrawal Strength of Different Types of Auxetic Dowels for Furniture Joints Kasal, Ali Kuşkun, Tolga Smardzewski, Jerzy Materials (Basel) Article Studies on the application of auxetic metamaterials and structures in furniture joints are very limited. However, they have huge potential for use in ready-to-assemble furniture. This study aimed to design and produce different types of auxetic dowels in 3D printing technology, and experimentally and numerically analyze the withdrawal strength of these dowels. In the scope of the study, 24 auxetic dowels with different types and size of inclusions, different diameter of holes, and a non-auxetic reference dowel were designed and produced with appropriate muffs. Dowels were 3D printed from polyamide (PA12). Poisson’s ratios, withdrawal strength, contact pressures, and friction coefficients of dowels were determined theoretically by means of numerical analyses and real static compression tests. After the pre-production of dowels, the dowels with triangular inclusions have not been found to have sufficient strength and stiffness. Withdrawal strength of dowels decreased as the size of inclusions is decreased, or dowel hole diameter is increased. Furthermore, contact pressures and stresses in auxetic dowels were considerably lower than non-auxetic dowels under the withdrawal force. MDPI 2020-09-24 /pmc/articles/PMC7579455/ /pubmed/32987710 http://dx.doi.org/10.3390/ma13194252 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kasal, Ali
Kuşkun, Tolga
Smardzewski, Jerzy
Experimental and Numerical Study on Withdrawal Strength of Different Types of Auxetic Dowels for Furniture Joints
title Experimental and Numerical Study on Withdrawal Strength of Different Types of Auxetic Dowels for Furniture Joints
title_full Experimental and Numerical Study on Withdrawal Strength of Different Types of Auxetic Dowels for Furniture Joints
title_fullStr Experimental and Numerical Study on Withdrawal Strength of Different Types of Auxetic Dowels for Furniture Joints
title_full_unstemmed Experimental and Numerical Study on Withdrawal Strength of Different Types of Auxetic Dowels for Furniture Joints
title_short Experimental and Numerical Study on Withdrawal Strength of Different Types of Auxetic Dowels for Furniture Joints
title_sort experimental and numerical study on withdrawal strength of different types of auxetic dowels for furniture joints
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7579455/
https://www.ncbi.nlm.nih.gov/pubmed/32987710
http://dx.doi.org/10.3390/ma13194252
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