Repository logo
 
Publication

Notch fatigue analysis and crack initiation life estimation of maraging steel fabricated by laser beam powder bed fusion under multiaxial loading

2021-12Journal article Restricted access
Simple item page
datacite.subject.fosCiências Naturais::Matemáticas
datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.fosEngenharia e Tecnologia::Outras Engenharias e Tecnologias
datacite.subject.fosCiências Naturais::Outras Ciências Naturais
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorBranco, R.
dc.contributor.authorPrates, P. A.
dc.contributor.authorCosta, J. D.
dc.contributor.authorFerreira, J. A. Martins
dc.contributor.authorCapela, C.
dc.contributor.authorBerto, F.
dc.date.accessioned2026-01-08T15:31:08Z
dc.date.available2026-01-08T15:31:08Z
dc.date.issued2021-12
dc.description.abstractThis paper deals with the notch fatigue behaviour and crack initiation life estimation in maraging steel fabricated by laser beam powder bed fusion under multiaxial loading. Tests are conducted in tubular geometries with lateral holes considering different normal stress to shear stress ratios and multiaxial loading levels. The cyclic stress–strain response at the notch-controlled process zone is simulated numerically using two alternative approaches: a generalised isotropic plasticity model with mixed isotropic-kinematic hardening, and a linear-elastic model. Both approaches demonstrated to be suitable for predicting the crack initiation sites, the directions of crack growth, and the fatigue life. Fatigue life was calculated from a SWT-based model combined with the Theory of Critical Distances. Elastic-plastic predictions led to smaller errors but slightly shifted to the non-conservative side.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 projects UIDB/00285/2020, UIDB/00481/2020, and UIDP/00481/2020.
dc.identifier.citationR. Branco, P.A. Prates, J.D. Costa, J.A. Martins Ferreira, C. Capela, F. Berto, Notch fatigue analysis and crack initiation life estimation of maraging steel fabricated by laser beam powder bed fusion under multiaxial loading, International Journal of Fatigue, Volume 153, 2021, 106468, ISSN 0142-1123, https://doi.org/10.1016/j.ijfatigue.2021.106468.
dc.identifier.doi10.1016/j.ijfatigue.2021.106468
dc.identifier.issn0142-1123
dc.identifier.urihttp://hdl.handle.net/10400.8/15265
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationCentre for Mechanical Enginnering, Materials and Processes
dc.relationCentre for Mechanical Technology and Automation
dc.relationCentre for Mechanical Technology and Automation
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0142112321003261?via%3Dihub
dc.relation.ispartofInternational Journal of Fatigue
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMultiaxial fatigue
dc.subjectCrack initiation
dc.subjectCrack direction
dc.subjectCyclic plasticity
dc.subjectSWT damage parameter
dc.titleNotch fatigue analysis and crack initiation life estimation of maraging steel fabricated by laser beam powder bed fusion under multiaxial loadingeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Mechanical Enginnering, Materials and Processes
oaire.awardTitleCentre for Mechanical Technology and Automation
oaire.awardTitleCentre for Mechanical Technology and Automation
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00481%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00481%2F2020/PT
oaire.citation.endPage12
oaire.citation.startPage1
oaire.citation.titleInternational Journal of Fatigue
oaire.citation.volume153
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
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.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
relation.isAuthorOfPublication9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isAuthorOfPublication.latestForDiscovery9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isProjectOfPublication0a3418ca-35b9-4670-a826-154cceca5a89
relation.isProjectOfPublication3b1e9aa2-b6d1-4b00-b56c-493e95cb0b27
relation.isProjectOfPublication4e49af2a-c3ef-4713-a12b-da276d6fcd9f
relation.isProjectOfPublication.latestForDiscovery0a3418ca-35b9-4670-a826-154cceca5a89

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Notch fatigue analysis and crack initiation life estimation of maraging steel fabricated by laser beam powder bed fusion under multiaxial loading.pdf
Size:
7.43 MB
Format:
Adobe Portable Document Format
Description:
This paper deals with the notch fatigue behaviour and crack initiation life estimation in maraging steel fabricated by laser beam powder bed fusion under multiaxial loading. Tests are conducted in tubular geometries with lateral holes considering different normal stress to shear stress ratios and multiaxial loading levels. The cyclic stress–strain response at the notch-controlled process zone is simulated numerically using two alternative approaches: a generalised isotropic plasticity model with mixed isotropic-kinematic hardening, and a linear-elastic model. Both approaches demonstrated to be suitable for predicting the crack initiation sites, the directions of crack growth, and the fatigue life. Fatigue life was calculated from a SWT-based model combined with the Theory of Critical Distances. Elastic-plastic predictions led to smaller errors but slightly shifted to the non-conservative side.
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.32 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESTG - Artigos em revistas internacionais