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Digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites

Fused filament fabrication (FFF) has rapidly begun to see implementation in industrial fields as a method of rapid manufacturing. Traditional FFF parts are made from a single thermoplastic polymer. The polymer is heated to its melting point and deposited on a work bed where a model is gradually buil...

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Autores principales: Timpano, Cristofaro S, Melenka, Garrett W
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8551441/
https://www.ncbi.nlm.nih.gov/pubmed/34720176
http://dx.doi.org/10.1177/00219983211020500
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author Timpano, Cristofaro S
Melenka, Garrett W
author_facet Timpano, Cristofaro S
Melenka, Garrett W
author_sort Timpano, Cristofaro S
collection PubMed
description Fused filament fabrication (FFF) has rapidly begun to see implementation in industrial fields as a method of rapid manufacturing. Traditional FFF parts are made from a single thermoplastic polymer. The polymer is heated to its melting point and deposited on a work bed where a model is gradually built from the base up. While traditional FFF parts have low mechanical properties, a reinforcing phase allows for improved mechanical properties. The addition of a reinforcing material to the base polymer and complex internal microstructure of the 3 D printed party leads to anisotropic mechanical properties. Thus, these materials’ mechanical properties become challenging to characterize using traditional measurement techniques due to the previously mentioned factors. Therefore, it is essential to develop a method in which mechanical properties can be measured and analyzed. This study aims to characterize the mechanical behaviour under a uniaxial tensile load of an FFF produced polylactic acid (PLA)-copper particulate composite. The internal response of the FFF sample was imaged using micro-computed tomography at predetermined loads. The μ-CT images were input into an open-source digital volume correlation (DVC) software to measure the internal displacements and strain tensor fields. The study results show the development of different strain fields and interior features of the FFF parts.
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spelling pubmed-85514412021-10-29 Digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites Timpano, Cristofaro S Melenka, Garrett W J Compos Mater Articles Fused filament fabrication (FFF) has rapidly begun to see implementation in industrial fields as a method of rapid manufacturing. Traditional FFF parts are made from a single thermoplastic polymer. The polymer is heated to its melting point and deposited on a work bed where a model is gradually built from the base up. While traditional FFF parts have low mechanical properties, a reinforcing phase allows for improved mechanical properties. The addition of a reinforcing material to the base polymer and complex internal microstructure of the 3 D printed party leads to anisotropic mechanical properties. Thus, these materials’ mechanical properties become challenging to characterize using traditional measurement techniques due to the previously mentioned factors. Therefore, it is essential to develop a method in which mechanical properties can be measured and analyzed. This study aims to characterize the mechanical behaviour under a uniaxial tensile load of an FFF produced polylactic acid (PLA)-copper particulate composite. The internal response of the FFF sample was imaged using micro-computed tomography at predetermined loads. The μ-CT images were input into an open-source digital volume correlation (DVC) software to measure the internal displacements and strain tensor fields. The study results show the development of different strain fields and interior features of the FFF parts. SAGE Publications 2021-05-27 2021-10 /pmc/articles/PMC8551441/ /pubmed/34720176 http://dx.doi.org/10.1177/00219983211020500 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Articles
Timpano, Cristofaro S
Melenka, Garrett W
Digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites
title Digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites
title_full Digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites
title_fullStr Digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites
title_full_unstemmed Digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites
title_short Digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites
title_sort digital volume correlation analysis of polylactic acid based fused filament fabrication printed composites
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8551441/
https://www.ncbi.nlm.nih.gov/pubmed/34720176
http://dx.doi.org/10.1177/00219983211020500
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