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Engineering the elastic modulus of NiTi cellular structures fabricated by selective laser melting

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dc.contributor.authorBartolomeu, F.
dc.contributor.authorCosta, M.M.
dc.contributor.authorAlves, N.
dc.contributor.authorMiranda, G.
dc.contributor.authorSilva, F.S.
dc.date.accessioned2023-04-14T14:09:49Z
dc.date.available2023-04-14T14:09:49Z
dc.date.issued2020
dc.descriptionThis work was supported by FCT (Fundaç~ao para a Ci^encia e Tecnologia) through the grant SFRH/BD/128657/2017 and the projects POCI-01-0145-FEDER-030353 (SMARTCUT), NORTE 01–0145_FEDER-000018-HAMaBICo, UID/EEA/04436/2019 and UID/Multi/04044/2019.pt_PT
dc.description.abstractNickel-titanium (NiTi) cellular structures are a very promising solution to some issues related to orthopaedic implant failure. These structures can be designed and fabricated to simultaneously address a combination of mechanical and physical properties, such as elastic modulus, porosity, wear and corrosion resistance, biocompatibility and appropriate biological environment. This ability can enhance the modest interaction currently existing between metallic dense implants and surrounding bone tissue, allowing long-term successful orthopaedic implants. For that purpose, NiTi cellular structures with different levels of porosity intended to reduce the elastic modulus were designed, modelled, selective laser melting (SLM) fabricated and characterized. Significant differences were found between the CAD design and the SLM-produced NiTi structures by performing systematic image analysis. This work proposes designing guidelines to anticipate and correct the systematic differences between CAD and produced structures. Compressive tests were carried out to estimate the elastic modulus of the produced structures and finite element analyses were performed, for comparison purposes. Linear correlations were found for the dimensions, porosity, and elastic modulus when comparing the CAD design with the SLM structures. The produced NiTi structures exhibit elastic moduli that match that of bone tissue, which is a good indication of the potential of these structures in orthopaedic implants.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationF. Bartolomeu, M.M. Costa, N. Alves, G. Miranda, F.S. Silva, Engineering the elastic modulus of NiTi cellular structures fabricated by selective laser melting, Journal of the Mechanical Behavior of Biomedical Materials, Volume 110, 2020, 103891, ISSN 1751-6161, https://doi.org/10.1016/j.jmbbm.2020.103891.pt_PT
dc.identifier.doi10.1016/j.jmbbm.2020.103891pt_PT
dc.identifier.issn1751-6161
dc.identifier.urihttp://hdl.handle.net/10400.8/8386
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationSmart design of Titanium/NiTi cellular structured implants by Multi-Material-Selective-Laser-Melting
dc.relationMicroelectromechanical Systems Research Unit
dc.relationCentre for Rapid and Sustainable Product Development
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1751616120304458pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectNiTipt_PT
dc.subjectPower bed fusionpt_PT
dc.subjectSelective laser meltingpt_PT
dc.subjectCellular structurespt_PT
dc.subjectElastic moduluspt_PT
dc.titleEngineering the elastic modulus of NiTi cellular structures fabricated by selective laser meltingpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSmart design of Titanium/NiTi cellular structured implants by Multi-Material-Selective-Laser-Melting
oaire.awardTitleMicroelectromechanical Systems Research Unit
oaire.awardTitleCentre for Rapid and Sustainable Product Development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F128657%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEEA%2F04436%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04044%2F2019/PT
oaire.citation.titleJournal of the Mechanical Behavior of Biomedical Materialspt_PT
oaire.citation.volume110pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAlves
person.givenNameNuno
person.identifier452149
person.identifier.ciencia-id311E-1559-8F6C
person.identifier.orcid0000-0002-5016-0868
person.identifier.ridN-4073-2013
person.identifier.scopus-author-id7006403383
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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