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Large Deformation Finite Element Analyses for 3D X-ray CT Scanned Microscopic Structures of Polyurethane Foams

Polyurethane foams have unique properties that make them suitable for a wide range of applications, including cushioning and seat pads. The foam mechanical properties largely depend on both the parent material and foam cell microstructure. Uniaxial loading experiments, X-ray tomography and finite el...

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Detalles Bibliográficos
Autores principales: Iizuka, Makoto, Goto, Ryohei, Siegkas, Petros, Simpson, Benjamin, Mansfield, Neil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7922925/
https://www.ncbi.nlm.nih.gov/pubmed/33671456
http://dx.doi.org/10.3390/ma14040949
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author Iizuka, Makoto
Goto, Ryohei
Siegkas, Petros
Simpson, Benjamin
Mansfield, Neil
author_facet Iizuka, Makoto
Goto, Ryohei
Siegkas, Petros
Simpson, Benjamin
Mansfield, Neil
author_sort Iizuka, Makoto
collection PubMed
description Polyurethane foams have unique properties that make them suitable for a wide range of applications, including cushioning and seat pads. The foam mechanical properties largely depend on both the parent material and foam cell microstructure. Uniaxial loading experiments, X-ray tomography and finite element analysis can be used to investigate the relationship between the macroscopic mechanical properties and microscopic foam structure. Polyurethane foam specimens were scanned using X-ray computed tomography. The scanned geometries were converted to three-dimensional (3D) CAD models using open source, and commercially available CAD software tools. The models were meshed and used to simulate the compression tests using the implicit finite element method. The calculated uniaxial compression tests were in good agreement with experimental results for strains up to 30%. The presented method would be effective in investigating the effect of polymer foam geometrical features in macroscopic mechanical properties, and guide manufacturing methods for specific applications.
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spelling pubmed-79229252021-03-03 Large Deformation Finite Element Analyses for 3D X-ray CT Scanned Microscopic Structures of Polyurethane Foams Iizuka, Makoto Goto, Ryohei Siegkas, Petros Simpson, Benjamin Mansfield, Neil Materials (Basel) Article Polyurethane foams have unique properties that make them suitable for a wide range of applications, including cushioning and seat pads. The foam mechanical properties largely depend on both the parent material and foam cell microstructure. Uniaxial loading experiments, X-ray tomography and finite element analysis can be used to investigate the relationship between the macroscopic mechanical properties and microscopic foam structure. Polyurethane foam specimens were scanned using X-ray computed tomography. The scanned geometries were converted to three-dimensional (3D) CAD models using open source, and commercially available CAD software tools. The models were meshed and used to simulate the compression tests using the implicit finite element method. The calculated uniaxial compression tests were in good agreement with experimental results for strains up to 30%. The presented method would be effective in investigating the effect of polymer foam geometrical features in macroscopic mechanical properties, and guide manufacturing methods for specific applications. MDPI 2021-02-17 /pmc/articles/PMC7922925/ /pubmed/33671456 http://dx.doi.org/10.3390/ma14040949 Text en © 2021 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
Iizuka, Makoto
Goto, Ryohei
Siegkas, Petros
Simpson, Benjamin
Mansfield, Neil
Large Deformation Finite Element Analyses for 3D X-ray CT Scanned Microscopic Structures of Polyurethane Foams
title Large Deformation Finite Element Analyses for 3D X-ray CT Scanned Microscopic Structures of Polyurethane Foams
title_full Large Deformation Finite Element Analyses for 3D X-ray CT Scanned Microscopic Structures of Polyurethane Foams
title_fullStr Large Deformation Finite Element Analyses for 3D X-ray CT Scanned Microscopic Structures of Polyurethane Foams
title_full_unstemmed Large Deformation Finite Element Analyses for 3D X-ray CT Scanned Microscopic Structures of Polyurethane Foams
title_short Large Deformation Finite Element Analyses for 3D X-ray CT Scanned Microscopic Structures of Polyurethane Foams
title_sort large deformation finite element analyses for 3d x-ray ct scanned microscopic structures of polyurethane foams
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7922925/
https://www.ncbi.nlm.nih.gov/pubmed/33671456
http://dx.doi.org/10.3390/ma14040949
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