Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10316/102830
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Valvez, Sara | - |
dc.contributor.author | Silva, Abílio P. | - |
dc.contributor.author | Reis, Paulo N. B. | - |
dc.date.accessioned | 2022-10-17T08:46:12Z | - |
dc.date.available | 2022-10-17T08:46:12Z | - |
dc.date.issued | 2022 | - |
dc.identifier.issn | 2226-4310 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/102830 | - |
dc.description.abstract | It is known that 3D-printed PETG composites reinforced with carbon or Kevlar fibres are materials that can be suitable for specific applications in the aeronautical and/or automotive sector. However, for this purpose, it is necessary to understand their mechanical behaviour, which is not yet fully understood in terms of compression. Therefore, this study intends to increase the knowledge in this domain, especially in terms of static behaviour, as well as with regard to creep and stress relaxation due to the inherent viscoelasticity of the matrix. In this context, static, stress relaxation and creep tests were carried out, in compressive mode, using neat PETG and PETG composites reinforced with carbon and Kevlar fibres. From the static tests, it was found that the yield compressive strength decreased in both composites compared to the neat polymer. Values around 9.9% and 68.7% lower were found, respectively, when carbon and Kevlar fibres were added to the PETG. Similar behaviour was observed for compressive displacement, where a reduction of 20.4% and 46.3% was found, respectively. On the other hand, the compressive modulus increased by 12.4% when carbon fibres were added to the PETG matrix and decreased by 39.6% for Kevlar fibres. Finally, the stress relaxation behaviour revealed a decrease in compressive stresses over time for neat PETG, while the creep response promoted greater compressive displacement. In both situations, the response was very dependent on the displacement/stress level used at the beginning of the test. However, when the fibres were added to the polymer, higher stress relaxations and compressive displacements were observed. | pt |
dc.language.iso | eng | pt |
dc.relation | SAICT project nº 31296, “COMP4UAVs”, supported by POCI in its FEDER component and by FCT-IP | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | additive manufacturing | pt |
dc.subject | fused filament fabrication (FFF) | pt |
dc.subject | PETG; composites | pt |
dc.subject | mechanical testing | pt |
dc.subject | mechanical testing | pt |
dc.subject | compressive properties | pt |
dc.subject | creep and stress relaxation behaviour | pt |
dc.subject | mechanical testing | pt |
dc.title | Compressive Behaviour of 3D-Printed PETG Composites | pt |
dc.type | article | - |
degois.publication.firstPage | 124 | pt |
degois.publication.issue | 3 | pt |
degois.publication.title | Aerospace | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/aerospace9030124 | pt |
degois.publication.volume | 9 | pt |
dc.date.embargo | 2022-01-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.openairetype | article | - |
item.fulltext | Com Texto completo | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.orcid | 0000-0001-5203-3670 | - |
Aparece nas coleções: | I&D CEMMPRE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Compressive-Behaviour-of-3DPrinted-PETG-CompositesAerospace.pdf | 3.75 MB | Adobe PDF | Ver/Abrir |
Citações SCOPUSTM
33
Visto em 15/jul/2024
Citações WEB OF SCIENCETM
26
Visto em 2/jul/2024
Visualizações de página
79
Visto em 16/jul/2024
Downloads
194
Visto em 16/jul/2024
Google ScholarTM
Verificar
Altmetric
Altmetric
Este registo está protegido por Licença Creative Commons