Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/73905 |
Resumo: | In this work, a shape memory polyurethane is characterized through constrained recovery experiments performed in a tensile testing equipment. The most relevant results obtained are those concerned with the stress released over time during the recovery stage, since they provide quantitative information that can be used in the design of actuators. For this sake, design guidelines are proposed based on the effect of: (i) the programming temperature; (ii) the deformation imposed during the programming stage; (iii) the recovery temperature; and (iv) the manufacturing process used to produce the samples tested (compression molding and Fused Fila- ment Fabrication). The set of experiments performed with compression-molded samples put in evidence a considerable variety of material responses: (i) the maxi- mum released stress varied from 0.74 to 1.68 MPa; (ii) the time required to attain this stress varied from 47 to 600 s; and (iii) the stress was released as a peak value that relaxed rapidly, or, contrarily, had a lasting effect. Another relevant conclu- sion is that the 3D printing technique does not affect the shape memory behavior of the material. Having this in mind, the conclusions provided by the compression-molded samples study can be extended to printed ones. |
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Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery4D printingConstrained recoveryFused filament fabricationPolyurethaneShape memory polymersEngenharia e Tecnologia::Engenharia dos MateriaisScience & TechnologyIn this work, a shape memory polyurethane is characterized through constrained recovery experiments performed in a tensile testing equipment. The most relevant results obtained are those concerned with the stress released over time during the recovery stage, since they provide quantitative information that can be used in the design of actuators. For this sake, design guidelines are proposed based on the effect of: (i) the programming temperature; (ii) the deformation imposed during the programming stage; (iii) the recovery temperature; and (iv) the manufacturing process used to produce the samples tested (compression molding and Fused Fila- ment Fabrication). The set of experiments performed with compression-molded samples put in evidence a considerable variety of material responses: (i) the maxi- mum released stress varied from 0.74 to 1.68 MPa; (ii) the time required to attain this stress varied from 47 to 600 s; and (iii) the stress was released as a peak value that relaxed rapidly, or, contrarily, had a lasting effect. Another relevant conclu- sion is that the 3D printing technique does not affect the shape memory behavior of the material. Having this in mind, the conclusions provided by the compression-molded samples study can be extended to printed ones.This work was funded by National Funds through FCT— Portuguese Foundation for Science and Technology, References UIDB/05256/2020 and UIDP/05256/2020, and UIDB/04436/2020 and UIDP/04436/2020WileyUniversidade do MinhoPeixoto, CarinaZille, AndreaFerreira da Silva, AlexandreCarneiro, O. S.20212024-01-01T00:00:00Z2021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/73905eng0032-38881548-263410.1002/pen.25778https://onlinelibrary.wiley.com/doi/full/10.1002/pen.25778info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:30:18ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery |
title |
Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery |
spellingShingle |
Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery Peixoto, Carina 4D printing Constrained recovery Fused filament fabrication Polyurethane Shape memory polymers Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
title_short |
Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery |
title_full |
Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery |
title_fullStr |
Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery |
title_full_unstemmed |
Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery |
title_sort |
Shape memory polymers as actuators: characterization of the relevant parameters under constrained recovery |
author |
Peixoto, Carina |
author_facet |
Peixoto, Carina Zille, Andrea Ferreira da Silva, Alexandre Carneiro, O. S. |
author_role |
author |
author2 |
Zille, Andrea Ferreira da Silva, Alexandre Carneiro, O. S. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Peixoto, Carina Zille, Andrea Ferreira da Silva, Alexandre Carneiro, O. S. |
dc.subject.por.fl_str_mv |
4D printing Constrained recovery Fused filament fabrication Polyurethane Shape memory polymers Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
topic |
4D printing Constrained recovery Fused filament fabrication Polyurethane Shape memory polymers Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
description |
In this work, a shape memory polyurethane is characterized through constrained recovery experiments performed in a tensile testing equipment. The most relevant results obtained are those concerned with the stress released over time during the recovery stage, since they provide quantitative information that can be used in the design of actuators. For this sake, design guidelines are proposed based on the effect of: (i) the programming temperature; (ii) the deformation imposed during the programming stage; (iii) the recovery temperature; and (iv) the manufacturing process used to produce the samples tested (compression molding and Fused Fila- ment Fabrication). The set of experiments performed with compression-molded samples put in evidence a considerable variety of material responses: (i) the maxi- mum released stress varied from 0.74 to 1.68 MPa; (ii) the time required to attain this stress varied from 47 to 600 s; and (iii) the stress was released as a peak value that relaxed rapidly, or, contrarily, had a lasting effect. Another relevant conclu- sion is that the 3D printing technique does not affect the shape memory behavior of the material. Having this in mind, the conclusions provided by the compression-molded samples study can be extended to printed ones. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 2021-01-01T00:00:00Z 2024-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/73905 |
url |
http://hdl.handle.net/1822/73905 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0032-3888 1548-2634 10.1002/pen.25778 https://onlinelibrary.wiley.com/doi/full/10.1002/pen.25778 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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