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Cyclic plastic behaviour of 7075 aluminium alloy

2020Conference paper Open access
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.fosEngenharia e Tecnologia::Engenharia Civil
datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.fosCiências Naturais::Outras Ciências Naturais
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorNogueira, F.
dc.contributor.authorCunha, J.
dc.contributor.authorMateus, A.
dc.contributor.authorMalça, C.
dc.contributor.authorCosta, J. D.
dc.contributor.authorBranco, R.
dc.date.accessioned2025-10-10T15:40:17Z
dc.date.available2025-10-10T15:40:17Z
dc.date.issued2020
dc.descriptionConference name - 1st Virtual Conference on Structural Integrity, VCSI 2020; Conference city - Virtual, Online; Conference date - 16 January 2020; Conference code - 161742
dc.descriptionCunha, Jorge - Scopus ID: 57210722517
dc.description.abstractThis paper aims at studying the cyclic plastic behaviour of the 7075-T651 aluminium alloy under fully-reversed strain-controlled conditions. Tests are conducted under strain-control mode, at room temperature, in a conventional servo-hydraulic machine, from smooth samples, using the single step method, with strain amplitudes (∆ε/2) in the range ±0.5 to ±2.75%. This material has exhibited a mixed behaviour, i.e. cyclic strain-hardens at higher strain amplitudes (∆ε/2/>1.1%) and cyclic strain-softens at lower strain amplitudes (∆ε/2<1.1%). A linear relationship between the degree of cyclic strain-hardening and the strain amplitude has been established for higher strain amplitudes. Fatigue-ductility and fatigue-strength properties agree with those found in the open literature for the same loading conditions.eng
dc.description.sponsorshipThe authors would like to acknowledge the sponsoring under the project n.o028789, financed by the European Regional Development Fund (FEDER), through the Portugal-2020 program (PT2020), under the Regional Operational Program of the Center (CENTRO-01-0145-FEDER-028789) and the Foundation for Science and Technology IP/MCTES through national funds (PIDDAC). This work was also financially supported by the project POCI-01-0247-FEDER-024533 funded by FEDER through COMPETE2020 – “Programa Operacional Competitividade e Internacionalização” (POCI) and by national funds (PIDDAC) through FCT/MCTES. The Foundation for Science and Technology (FCT) and Centro2020 sponsored through the Project references UID/Multi/04044/2019 and PAMI - ROTEIRO/0328/2013 (Nº 022158).
dc.identifier.citationF. Nogueira, J. Cunha, A. Mateus, C. Malça, J.D. Costa, R. Branco, Cyclic plastic behaviour of 7075 aluminium alloy, Procedia Structural Integrity, Volume 25, 2020, Pages 438-444, ISSN 2452-3216, https://doi.org/10.1016/j.prostr.2020.04.049.
dc.identifier.doi10.1016/j.prostr.2020.04.049
dc.identifier.eissn2452-3216
dc.identifier.urihttp://hdl.handle.net/10400.8/14246
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationCentre for Rapid and Sustainable Product Development
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S2452321620303838?via%3Dihub
dc.relation.ispartofProcedia Structural Integrity
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectLow-cycle fatigue
dc.subjectcyclic plastic behaviour
dc.subjectstrain-softening
dc.subjectaluminium alloy
dc.subject7075-T651
dc.titleCyclic plastic behaviour of 7075 aluminium alloyeng
dc.typeconference paper
dspace.entity.typePublication
oaire.awardTitleCentre for Rapid and Sustainable Product Development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04044%2F2019/PT
oaire.citation.conferenceDate2020-01-16
oaire.citation.conferencePlaceVirtual, Online
oaire.citation.endPage444
oaire.citation.startPage438
oaire.citation.titleProcedia Structural Integrity
oaire.citation.volume25
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameNogueira
person.familyNameMateus
person.familyNamePereira Malça
person.givenNameFilipe
person.givenNameArtur
person.givenNameCândida Maria dos Santos
person.identifier.ciencia-id0E1A-9A57-E79A
person.identifier.ciencia-id8418-2828-E3C2
person.identifier.orcid0000-0003-4004-1627
person.identifier.orcid0000-0003-2483-9153
person.identifier.orcid0000-0003-0012-4380
person.identifier.ridH-3387-2018
person.identifier.scopus-author-id14028690000
person.identifier.scopus-author-id560 255 370 00
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
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relation.isAuthorOfPublication1dfafb6b-cec8-4769-ac8e-76dbd0209077
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relation.isAuthorOfPublication.latestForDiscovery1883ace3-5434-48f7-b995-9fcbfff65cc8
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This paper aims at studying the cyclic plastic behaviour of the 7075-T651 aluminium alloy under fully-reversed strain-controlled conditions. Tests are conducted under strain-control mode, at room temperature, in a conventional servo-hydraulic machine, from smooth samples, using the single step method, with strain amplitudes (∆ε/2) in the range ±0.5 to ±2.75%. This material has exhibited a mixed behaviour, i.e. cyclic strain-hardens at higher strain amplitudes (∆ε/2/>1.1%) and cyclic strain-softens at lower strain amplitudes (∆ε/2<1.1%). A linear relationship between the degree of cyclic strain-hardening and the strain amplitude has been established for higher strain amplitudes. Fatigue-ductility and fatigue-strength properties agree with those found in the open literature for the same loading conditions.
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