A parameter for quantitative analysis of plasticity induced crack closure
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/27253 https://doi.org/10.1016/j.ijfatigue.2013.08.026 |
Resumo: | Numerical models have been successfully developed to predict plasticity induced crack closure (PICC). However, despite the large research effort a full understanding of the links between physical parameters, residual plastic wake and PICC has not been achieved yet. The plastic extension of material behind crack tip, Δyp, obtained by the integration of vertical plastic deformation perpendicularly to crack flank, is proposed here to quantify the residual plastic field. The values of Δyp and PICC were obtained numerically in a M(T) specimen using the finite element method. An excellent correlation was found between PICC and Δyp which indicates that this parameter controls the phenomenon, and can be used to quantify the effect of physical parameters. An empirical model was developed to predict PICC assuming that the residual plastic field is a set of vertical plastic wedges, that the linear superposition principle applies and that the influence of a particular wedge exponentially decreases with distance to crack tip. The model was applied successfully to predict PICC for different residual plastic fields which provided an additional validation of Δyp as the parameter controlling PICC. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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A parameter for quantitative analysis of plasticity induced crack closurePlasticity induced crack closure (PICC)Finite element methodPlastic wedgesResidual plastic fieldNumerical models have been successfully developed to predict plasticity induced crack closure (PICC). However, despite the large research effort a full understanding of the links between physical parameters, residual plastic wake and PICC has not been achieved yet. The plastic extension of material behind crack tip, Δyp, obtained by the integration of vertical plastic deformation perpendicularly to crack flank, is proposed here to quantify the residual plastic field. The values of Δyp and PICC were obtained numerically in a M(T) specimen using the finite element method. An excellent correlation was found between PICC and Δyp which indicates that this parameter controls the phenomenon, and can be used to quantify the effect of physical parameters. An empirical model was developed to predict PICC assuming that the residual plastic field is a set of vertical plastic wedges, that the linear superposition principle applies and that the influence of a particular wedge exponentially decreases with distance to crack tip. The model was applied successfully to predict PICC for different residual plastic fields which provided an additional validation of Δyp as the parameter controlling PICC.Elsevier2013-09-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/27253http://hdl.handle.net/10316/27253https://doi.org/10.1016/j.ijfatigue.2013.08.026engANTUNES, F. V.; CORREIA, L.; RAMALHO, A. L. - A parameter for quantitative analysis of plasticity induced crack closure. "International Journal of Fatigue". ISSN 0142-1123. (2013)0142-1123http://www.sciencedirect.com/science/article/pii/S0142112313002478#FCANoteAntunes, F. V.Correia, L.Ramalho, A. L.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-05-25T12:37:40Zoai:estudogeral.uc.pt:10316/27253Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:58:36.195313Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
A parameter for quantitative analysis of plasticity induced crack closure |
title |
A parameter for quantitative analysis of plasticity induced crack closure |
spellingShingle |
A parameter for quantitative analysis of plasticity induced crack closure Antunes, F. V. Plasticity induced crack closure (PICC) Finite element method Plastic wedges Residual plastic field |
title_short |
A parameter for quantitative analysis of plasticity induced crack closure |
title_full |
A parameter for quantitative analysis of plasticity induced crack closure |
title_fullStr |
A parameter for quantitative analysis of plasticity induced crack closure |
title_full_unstemmed |
A parameter for quantitative analysis of plasticity induced crack closure |
title_sort |
A parameter for quantitative analysis of plasticity induced crack closure |
author |
Antunes, F. V. |
author_facet |
Antunes, F. V. Correia, L. Ramalho, A. L. |
author_role |
author |
author2 |
Correia, L. Ramalho, A. L. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Antunes, F. V. Correia, L. Ramalho, A. L. |
dc.subject.por.fl_str_mv |
Plasticity induced crack closure (PICC) Finite element method Plastic wedges Residual plastic field |
topic |
Plasticity induced crack closure (PICC) Finite element method Plastic wedges Residual plastic field |
description |
Numerical models have been successfully developed to predict plasticity induced crack closure (PICC). However, despite the large research effort a full understanding of the links between physical parameters, residual plastic wake and PICC has not been achieved yet. The plastic extension of material behind crack tip, Δyp, obtained by the integration of vertical plastic deformation perpendicularly to crack flank, is proposed here to quantify the residual plastic field. The values of Δyp and PICC were obtained numerically in a M(T) specimen using the finite element method. An excellent correlation was found between PICC and Δyp which indicates that this parameter controls the phenomenon, and can be used to quantify the effect of physical parameters. An empirical model was developed to predict PICC assuming that the residual plastic field is a set of vertical plastic wedges, that the linear superposition principle applies and that the influence of a particular wedge exponentially decreases with distance to crack tip. The model was applied successfully to predict PICC for different residual plastic fields which provided an additional validation of Δyp as the parameter controlling PICC. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09-10 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/27253 http://hdl.handle.net/10316/27253 https://doi.org/10.1016/j.ijfatigue.2013.08.026 |
url |
http://hdl.handle.net/10316/27253 https://doi.org/10.1016/j.ijfatigue.2013.08.026 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
ANTUNES, F. V.; CORREIA, L.; RAMALHO, A. L. - A parameter for quantitative analysis of plasticity induced crack closure. "International Journal of Fatigue". ISSN 0142-1123. (2013) 0142-1123 http://www.sciencedirect.com/science/article/pii/S0142112313002478#FCANote |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133877600518144 |