Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.proeng.2011.04.202 http://hdl.handle.net/11449/72691 |
Resumo: | The aluminum alloy 2524 (Al-Cu-Mg) was developed during the 90s mainly to be employed in aircraft fuselage panels, replacing the standard Al 2024. In the present analysis the fatigue crack growth (FCG) behavior of 2524-T3 was investigated, regarding the influence of three parameters: load ratio, pre strain and crack plane orientation of the material. The pre strain of aluminum alloys is usually performed in order to obtain a more homogeneous precipitates distribution, accompanied by an increase in the yield strength. In this work, it was evaluated the resistance of Al 2524-T3 sheet samples to the fatigue crack growth, having L-T and T-L crack orientations. FCG tests were performed under constant amplitude loading at three distinct positive load ratios. The three material conditions were tested: as received(AR), pre strained longitudinally (SL) and transversally (ST) in relation to rolling direction. In order to describe FCG behavior, two-parameter kinetic equations were compared: a Paris-type potential model and a new exponential equation introduced in a previous work conducted by our research group. It was observed that the exponential model, which takes into account the deviations from linearity presented by da/dN versus AK data, describes more adequately the FCG behavior of Al 224-T3 in relation to load ratio, pre strain effects and crack plane orientation. © 2011 Published by Elsevier Ltd. |
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Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloyAluminum alloysFatigue crack growthModelingPre strainAircraft fuselagesAl 2024Al-Cu-MgConstant amplitude loadingCrack orientationsCrack planeExponential equationsExponential modelsFatigue cracksKinetic equationsLoad ratioMaterial conditionsPotential ModelPre-strainResearch groupsRolling directionSheet samplesThree parametersAircraft materialsAluminumCerium alloysCracksFatigue crack propagationFatigue of materialsFuselagesGrowth (materials)Integral equationsMechanical engineeringModelsThe aluminum alloy 2524 (Al-Cu-Mg) was developed during the 90s mainly to be employed in aircraft fuselage panels, replacing the standard Al 2024. In the present analysis the fatigue crack growth (FCG) behavior of 2524-T3 was investigated, regarding the influence of three parameters: load ratio, pre strain and crack plane orientation of the material. The pre strain of aluminum alloys is usually performed in order to obtain a more homogeneous precipitates distribution, accompanied by an increase in the yield strength. In this work, it was evaluated the resistance of Al 2524-T3 sheet samples to the fatigue crack growth, having L-T and T-L crack orientations. FCG tests were performed under constant amplitude loading at three distinct positive load ratios. The three material conditions were tested: as received(AR), pre strained longitudinally (SL) and transversally (ST) in relation to rolling direction. In order to describe FCG behavior, two-parameter kinetic equations were compared: a Paris-type potential model and a new exponential equation introduced in a previous work conducted by our research group. It was observed that the exponential model, which takes into account the deviations from linearity presented by da/dN versus AK data, describes more adequately the FCG behavior of Al 224-T3 in relation to load ratio, pre strain effects and crack plane orientation. © 2011 Published by Elsevier Ltd.Escola de Engenharia de Lorena EEL/USP Department of Materials Engineering, SP Cx. Postal 116, Lorena CEP 12602-810Universidade Estadual Paulista FEG Department of Mechanics, Guaratinguetá, SP CEP 12516-410Instituto Federal de São Paulo Campus São João da Boa Vista IFSP/SJBV, Jardim Itália, SJBV, SP CEP 13872-551Universidade Estadual Paulista FEG Department of Mechanics, Guaratinguetá, SP CEP 12516-410Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)IFSP/SJBV, Jardim Itália, SJBVMaduro, L. P.Baptista, C. A R PTorres, M. A S [UNESP]Souza, R. C.2014-05-27T11:26:00Z2014-05-27T11:26:00Z2011-09-23info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject1214-1219application/pdfhttp://dx.doi.org/10.1016/j.proeng.2011.04.202Procedia Engineering, v. 10, p. 1214-1219.1877-7058http://hdl.handle.net/11449/7269110.1016/j.proeng.2011.04.2022-s2.0-800529468852-s2.0-80052946885.pdf1837671219865754Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProcedia Engineering0,282info:eu-repo/semantics/openAccess2024-07-01T20:32:40Zoai:repositorio.unesp.br:11449/72691Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:29:02.260624Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy |
title |
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy |
spellingShingle |
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy Maduro, L. P. Aluminum alloys Fatigue crack growth Modeling Pre strain Aircraft fuselages Al 2024 Al-Cu-Mg Constant amplitude loading Crack orientations Crack plane Exponential equations Exponential models Fatigue cracks Kinetic equations Load ratio Material conditions Potential Model Pre-strain Research groups Rolling direction Sheet samples Three parameters Aircraft materials Aluminum Cerium alloys Cracks Fatigue crack propagation Fatigue of materials Fuselages Growth (materials) Integral equations Mechanical engineering Models |
title_short |
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy |
title_full |
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy |
title_fullStr |
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy |
title_full_unstemmed |
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy |
title_sort |
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy |
author |
Maduro, L. P. |
author_facet |
Maduro, L. P. Baptista, C. A R P Torres, M. A S [UNESP] Souza, R. C. |
author_role |
author |
author2 |
Baptista, C. A R P Torres, M. A S [UNESP] Souza, R. C. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) IFSP/SJBV, Jardim Itália, SJBV |
dc.contributor.author.fl_str_mv |
Maduro, L. P. Baptista, C. A R P Torres, M. A S [UNESP] Souza, R. C. |
dc.subject.por.fl_str_mv |
Aluminum alloys Fatigue crack growth Modeling Pre strain Aircraft fuselages Al 2024 Al-Cu-Mg Constant amplitude loading Crack orientations Crack plane Exponential equations Exponential models Fatigue cracks Kinetic equations Load ratio Material conditions Potential Model Pre-strain Research groups Rolling direction Sheet samples Three parameters Aircraft materials Aluminum Cerium alloys Cracks Fatigue crack propagation Fatigue of materials Fuselages Growth (materials) Integral equations Mechanical engineering Models |
topic |
Aluminum alloys Fatigue crack growth Modeling Pre strain Aircraft fuselages Al 2024 Al-Cu-Mg Constant amplitude loading Crack orientations Crack plane Exponential equations Exponential models Fatigue cracks Kinetic equations Load ratio Material conditions Potential Model Pre-strain Research groups Rolling direction Sheet samples Three parameters Aircraft materials Aluminum Cerium alloys Cracks Fatigue crack propagation Fatigue of materials Fuselages Growth (materials) Integral equations Mechanical engineering Models |
description |
The aluminum alloy 2524 (Al-Cu-Mg) was developed during the 90s mainly to be employed in aircraft fuselage panels, replacing the standard Al 2024. In the present analysis the fatigue crack growth (FCG) behavior of 2524-T3 was investigated, regarding the influence of three parameters: load ratio, pre strain and crack plane orientation of the material. The pre strain of aluminum alloys is usually performed in order to obtain a more homogeneous precipitates distribution, accompanied by an increase in the yield strength. In this work, it was evaluated the resistance of Al 2524-T3 sheet samples to the fatigue crack growth, having L-T and T-L crack orientations. FCG tests were performed under constant amplitude loading at three distinct positive load ratios. The three material conditions were tested: as received(AR), pre strained longitudinally (SL) and transversally (ST) in relation to rolling direction. In order to describe FCG behavior, two-parameter kinetic equations were compared: a Paris-type potential model and a new exponential equation introduced in a previous work conducted by our research group. It was observed that the exponential model, which takes into account the deviations from linearity presented by da/dN versus AK data, describes more adequately the FCG behavior of Al 224-T3 in relation to load ratio, pre strain effects and crack plane orientation. © 2011 Published by Elsevier Ltd. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-09-23 2014-05-27T11:26:00Z 2014-05-27T11:26:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.proeng.2011.04.202 Procedia Engineering, v. 10, p. 1214-1219. 1877-7058 http://hdl.handle.net/11449/72691 10.1016/j.proeng.2011.04.202 2-s2.0-80052946885 2-s2.0-80052946885.pdf 1837671219865754 |
url |
http://dx.doi.org/10.1016/j.proeng.2011.04.202 http://hdl.handle.net/11449/72691 |
identifier_str_mv |
Procedia Engineering, v. 10, p. 1214-1219. 1877-7058 10.1016/j.proeng.2011.04.202 2-s2.0-80052946885 2-s2.0-80052946885.pdf 1837671219865754 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Procedia Engineering 0,282 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1214-1219 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129324948127744 |