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Analysis of fatigue crack propagation in laser sintering metal

2017Artigo científico Acesso aberto
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datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorBorrego, L. F. P.
dc.contributor.authorAntunes, F. V.
dc.contributor.authorFerreira, J. A. M.
dc.contributor.authorCosta, J. D.
dc.contributor.authorCapela, C.
dc.date.accessioned2026-03-12T15:58:53Z
dc.date.available2026-03-12T15:58:53Z
dc.date.issued2017
dc.description.abstractLaser sintering metal has recently been used in the manufacture of components for different applications like aerospace or medicine. The approach to engineering design based on the cracks propagation assumption applying the concepts of linear elastic fracture mechanics (LEFM) is commonly used for aerospace engineering. However, fatigue crack propagation is linked to irreversible and non-linear mechanisms at the crack tip, therefore LEFM parameters can be successfully replaced by non-linear crack parameters, namely the plastic CTOD. A model linking da/dN with plastic CTOD is proposed here to characterize fatigue crack propagation. A comparison is made with other materials showing that for the same plastic CTOD the laser sintering material has a relatively large crack growth rate.eng
dc.description.sponsorshipThe 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.
dc.identifier.citationL.F.P. Borrego, F.V. Antunes, J.A.M. Ferreira, J.D. Costa, C. Capela, Analysis of fatigue crack propagation in laser sintering metal, Procedia Structural Integrity, Volume 5, 2017, Pages 239-246, ISSN 2452-3216, https://doi.org/10.1016/j.prostr.2017.07.123
dc.identifier.doi10.1016/j.prostr.2017.07.123
dc.identifier.issn2452-3216
dc.identifier.urihttp://hdl.handle.net/10400.8/15857
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier BV
dc.relationPTDC/EMS-PRO/1356/2014
dc.relation3599-PPCDT
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S2452321617302354
dc.relation.ispartofProcedia Structural Integrity
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectLaser sintering material
dc.subjectfatigue crack propagation
dc.subjectplastic CTOD
dc.titleAnalysis of fatigue crack propagation in laser sintering metaleng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage246
oaire.citation.startPage239
oaire.citation.titleProcedia Structural Integrity
oaire.citation.volume5
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
relation.isAuthorOfPublication9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isAuthorOfPublication.latestForDiscovery9b079aa3-b79b-4395-b081-1f23d6a17514

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