Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy

Detalhes bibliográficos
Autor(a) principal: Branco, R.
Data de Publicação: 2019
Outros Autores: Borrego, L. P., Costa, J. D., Antunes, F. V.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Texto Completo: https://hdl.handle.net/10316/101636
https://doi.org/10.1016/j.prostr.2019.08.024
Resumo: This paper aims at studying the pre-strain effect on cyclic plastic behaviour of the 7050-T6 aluminium alloy. In order to meet this goal, different series of tests with various pre-strain histories are performed under fully-reversed strain-controlled conditions. In a second stage, fracture surfaces are examined by scanning electron microscopy to identify the main fracture damage micro-mechanisms associated with the pre-strain scenarios. Overall, the results show that higher tensile pre-strain levels lead to lower fatigue lives. This reduction of the fatigue life expectancy tends to increase for higher cyclic strain amplitudes.
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spelling Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloyPre-strainlow-cycle fatiguecyclic plastic behaviour7050-T6 aluminium alloyThis paper aims at studying the pre-strain effect on cyclic plastic behaviour of the 7050-T6 aluminium alloy. In order to meet this goal, different series of tests with various pre-strain histories are performed under fully-reversed strain-controlled conditions. In a second stage, fracture surfaces are examined by scanning electron microscopy to identify the main fracture damage micro-mechanisms associated with the pre-strain scenarios. Overall, the results show that higher tensile pre-strain levels lead to lower fatigue lives. This reduction of the fatigue life expectancy tends to increase for higher cyclic strain amplitudes.2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://hdl.handle.net/10316/101636https://hdl.handle.net/10316/101636https://doi.org/10.1016/j.prostr.2019.08.024eng24523216Branco, R.Borrego, L. P.Costa, J. D.Antunes, F. V.info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2022-09-05T20:43:33Zoai:estudogeral.uc.pt:10316/101636Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T05:51:02.064250Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy
title Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy
spellingShingle Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy
Branco, R.
Pre-strain
low-cycle fatigue
cyclic plastic behaviour
7050-T6 aluminium alloy
title_short Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy
title_full Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy
title_fullStr Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy
title_full_unstemmed Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy
title_sort Effect of pre-strain on cyclic plastic behaviour of 7050-T6 aluminium alloy
author Branco, R.
author_facet Branco, R.
Borrego, L. P.
Costa, J. D.
Antunes, F. V.
author_role author
author2 Borrego, L. P.
Costa, J. D.
Antunes, F. V.
author2_role author
author
author
dc.contributor.author.fl_str_mv Branco, R.
Borrego, L. P.
Costa, J. D.
Antunes, F. V.
dc.subject.por.fl_str_mv Pre-strain
low-cycle fatigue
cyclic plastic behaviour
7050-T6 aluminium alloy
topic Pre-strain
low-cycle fatigue
cyclic plastic behaviour
7050-T6 aluminium alloy
description This paper aims at studying the pre-strain effect on cyclic plastic behaviour of the 7050-T6 aluminium alloy. In order to meet this goal, different series of tests with various pre-strain histories are performed under fully-reversed strain-controlled conditions. In a second stage, fracture surfaces are examined by scanning electron microscopy to identify the main fracture damage micro-mechanisms associated with the pre-strain scenarios. Overall, the results show that higher tensile pre-strain levels lead to lower fatigue lives. This reduction of the fatigue life expectancy tends to increase for higher cyclic strain amplitudes.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10316/101636
https://hdl.handle.net/10316/101636
https://doi.org/10.1016/j.prostr.2019.08.024
url https://hdl.handle.net/10316/101636
https://doi.org/10.1016/j.prostr.2019.08.024
dc.language.iso.fl_str_mv eng
language eng
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