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Multiaxial fatigue behaviour of maraging steel produced by selective laser melting

2021-03Artigo científico Acesso aberto
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.fosCiências Naturais::Outras Ciências Naturais
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorBranco, R.
dc.contributor.authorCosta, J. D.
dc.contributor.authorMartins Ferreira, J. A.
dc.contributor.authorCapela, C.
dc.contributor.authorAntunes, F. V.
dc.contributor.authorMacek, W.
dc.date.accessioned2026-03-16T11:30:07Z
dc.date.available2026-03-16T11:30:07Z
dc.date.issued2021-03
dc.description.abstractThis paper studies the multiaxial fatigue behaviour of maraging steel samples produced by selective laser melting. Hollow cylindrical specimens with transverse circular holes are subjected to different in-phase bending-torsion loading scenarios. Fatigue crack initiation sites and fatigue crack angles are predicted from the first principal stress field. Fatigue lifetime is computed using a straightforward approach, based on a one-parameter damage law, developed via uniaxial low-cycle fatigue tests. The cyclic plasticity at the notch-controlled process zone is accounted for by combining the equivalent strain energy density concept and the theory of critical distances within a linear-elastic framework. Regardless of the multiaxial loading scenario, experimental observations and predicted lives are very well correlated.eng
dc.description.sponsorshipThis research is sponsored by FEDER funds through the program COMPETE – Programa Operacional Factores de Competitividade – and by national funds through FCT – Fundação para a Ciência e a Tecnologia –, under the project UIDB/00285/2020. The authors would like to acknowledge the sponsoring under the project number 016713 (PTDC/EMS-PRO/1356/2014) financed by Project 3599 Promover a Produção Científica e Desenvolvimento Tecnológico e a Constituição de Redes Temáticas (3599-PPCDT) and FEDER funds and also EROFIO S.A. industry for the supply of the testing samples. The authors are thankful to the master student Daniel Monteiro.
dc.identifier.citationR. Branco, J.D. Costa, J.A. Martins Ferreira, C. Capela, F.V. Antunes, W. Macek, Multiaxial fatigue behaviour of maraging steel produced by selective laser melting, Materials & Design, Volume 201, 2021, 109469, ISSN 0264-1275, https://doi.org/10.1016/j.matdes.2021.109469.
dc.identifier.doi10.1016/j.matdes.2021.109469
dc.identifier.eissn1873-4197
dc.identifier.issn0264-1275
dc.identifier.urihttp://hdl.handle.net/10400.8/15873
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationCentre for Mechanical Enginnering, Materials and Processes
dc.relationImproving the mechanical performance of hybrid functional components obtained by sintering laser
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0264127521000228?via%3Dihub
dc.relation.ispartofMaterials & Design
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectMultiaxial fatigue
dc.subjectBending-torsion
dc.subjectMaraging steel
dc.subject18Ni300 steel
dc.subjectSelective laser melting
dc.subjectStrain energy density
dc.subjectSWT damage parameter
dc.subjectTheory of critical distances
dc.subjectNotch plasticity correction
dc.titleMultiaxial fatigue behaviour of maraging steel produced by selective laser meltingeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/00285/2020
oaire.awardNumberPTDC/EMS-PRO/1356/2014
oaire.awardTitleCentre for Mechanical Enginnering, Materials and Processes
oaire.awardTitleImproving the mechanical performance of hybrid functional components obtained by sintering laser
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT
oaire.awardURIhttp://hdl.handle.net/10400.8/15871
oaire.citation.endPage17
oaire.citation.startPage1
oaire.citation.titleMaterials & Design
oaire.citation.volume201
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamProjetos de Investigação Científica e Desenvolvimento Tecnológico - 2014 (P2020)
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCapela
person.givenNameCarlos
person.identifier.ciencia-id9B1E-6857-3D6B
person.identifier.orcid0000-0003-3334-4945
person.identifier.ridG-6395-2016
person.identifier.scopus-author-id7801358401
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isAuthorOfPublication.latestForDiscovery9b079aa3-b79b-4395-b081-1f23d6a17514
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This paper studies the multiaxial fatigue behaviour of maraging steel samples produced by selective laser melting. Hollow cylindrical specimens with transverse circular holes are subjected to different in-phase bending-torsion loading scenarios. Fatigue crack initiation sites and fatigue crack angles are predicted from the first principal stress field. Fatigue lifetime is computed using a straightforward approach, based on a one-parameter damage law, developed via uniaxial low-cycle fatigue tests. The cyclic plasticity at the notch-controlled process zone is accounted for by combining the equivalent strain energy density concept and the theory of critical distances within a linear-elastic framework. Regardless of the multiaxial loading scenario, experimental observations and predicted lives are very well correlated.
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