High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing

Bibliographic Details
Main Author: Rendas, Pedro
Publication Date: 2023
Other Authors: Imperadeiro, Alexandre, Martins, Rui F., Soares, Bruno A. R.
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10362/162353
Summary: Publisher Copyright: © 2023 by the authors.
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spelling High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturingadditive manufacturingmaterial extrusionmechanical propertiesPolyetheretherketone (PEEK)Chemistry(all)Polymers and PlasticsPublisher Copyright: © 2023 by the authors.Polyetheretherketone (PEEK) is the leading high-performance thermoplastic biomaterial that can be processed through material extrusion (ME) additive manufacturing (AM), also known as three-dimensional (3D) printing, for patient-specific load-bearing implant manufacture. Considering the importance of cyclic loading for load-bearing implant design, this work addresses the high-cycle fatigue behaviour of 3D-printed PEEK. In this work, printed PEEK specimens are cyclically loaded under stress-controlled tension–tension using different stress levels between 75% and 95% of printed PEEK’s tensile strength. The experimental results are used to document 3D-printed PEEK’s fatigue behaviour using Basquin’s power law, which was compared with previous fatigue research on bulk PEEK and other 3D-printing materials. As a pioneering study on its fatigue behaviour, the results from this work show that 3D-printed PEEK exhibits an above-average fatigue strength of 65 MPa, corresponding to about 75% of its tensile strength. Fracture surface analysis suggests that a transition can occur from ductile to brittle fracture with maximum stresses between 85% and 95% of the tensile strength. Evidence of crack propagation features on fracture surfaces under scanning electron microscope (SEM) observation suggests crack initiation in void defects created by printing deposition that propagates longitudinally through line bonding interfaces along layers. Considering this, 3D-printed PEEK’s fatigue behaviour can be strongly related to printing conditions. Further research on the fatigue behaviour of 3D-printed PEEK is necessary to support its use in load-bearing implant applications.UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e IndustrialDEMI - Departamento de Engenharia Mecânica e IndustrialRUNRendas, PedroImperadeiro, AlexandreMartins, Rui F.Soares, Bruno A. R.2024-01-16T22:36:39Z2023-12-202023-12-20T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article16application/pdfhttp://hdl.handle.net/10362/162353eng2073-4360PURE: 81473128https://doi.org/10.3390/polym16010018info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T18:17:25Zoai:run.unl.pt:10362/162353Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:47:59.280366Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing
title High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing
spellingShingle High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing
Rendas, Pedro
additive manufacturing
material extrusion
mechanical properties
Polyetheretherketone (PEEK)
Chemistry(all)
Polymers and Plastics
title_short High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing
title_full High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing
title_fullStr High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing
title_full_unstemmed High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing
title_sort High-Cycle Fatigue Behaviour of Polyetheretherketone (PEEK) Produced by Additive Manufacturing
author Rendas, Pedro
author_facet Rendas, Pedro
Imperadeiro, Alexandre
Martins, Rui F.
Soares, Bruno A. R.
author_role author
author2 Imperadeiro, Alexandre
Martins, Rui F.
Soares, Bruno A. R.
author2_role author
author
author
dc.contributor.none.fl_str_mv UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial
DEMI - Departamento de Engenharia Mecânica e Industrial
RUN
dc.contributor.author.fl_str_mv Rendas, Pedro
Imperadeiro, Alexandre
Martins, Rui F.
Soares, Bruno A. R.
dc.subject.por.fl_str_mv additive manufacturing
material extrusion
mechanical properties
Polyetheretherketone (PEEK)
Chemistry(all)
Polymers and Plastics
topic additive manufacturing
material extrusion
mechanical properties
Polyetheretherketone (PEEK)
Chemistry(all)
Polymers and Plastics
description Publisher Copyright: © 2023 by the authors.
publishDate 2023
dc.date.none.fl_str_mv 2023-12-20
2023-12-20T00:00:00Z
2024-01-16T22:36:39Z
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/10362/162353
url http://hdl.handle.net/10362/162353
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2073-4360
PURE: 81473128
https://doi.org/10.3390/polym16010018
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 16
application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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