Correlation of drilling damage with mechanical strength: A geometrical approach
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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/10400.22/11501 |
Resumo: | Nowadays composites are one of the most interesting groups of materials with applications in several technologically advanced fields like aeronautics, automotive or medicine among others. The great demand for this material comes from its low weight and high specific strength resulting in a good option for several demanding uses. One of the main advantages is related to the ability to produce parts in a near-net shape. However, assembly requirements normally include secondary operations like drilling. The resulting damage can affect the mechanical properties of the material questioning product reliability. In this work the authors present a comparative study of different combinations of tools, cutting speeds and feed rates associated with a method of image analysis that includes fractal dimension, a geometrical feature of the damaged region. This mathematical feature accounts for the irregularity of the damage boundary that can act as a stress concentration factor, thus causing mechanical strength reduction. Results include the presentation of a damage assessment model that could help on the correlation between the damaged region and the mechanical properties, including the contribution of the fractal dimension. |
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Correlation of drilling damage with mechanical strength: A geometrical approachComposite materialsMachiningDelaminationEnhanced radiographyDamage assessmentMechanical testingNowadays composites are one of the most interesting groups of materials with applications in several technologically advanced fields like aeronautics, automotive or medicine among others. The great demand for this material comes from its low weight and high specific strength resulting in a good option for several demanding uses. One of the main advantages is related to the ability to produce parts in a near-net shape. However, assembly requirements normally include secondary operations like drilling. The resulting damage can affect the mechanical properties of the material questioning product reliability. In this work the authors present a comparative study of different combinations of tools, cutting speeds and feed rates associated with a method of image analysis that includes fractal dimension, a geometrical feature of the damaged region. This mathematical feature accounts for the irregularity of the damage boundary that can act as a stress concentration factor, thus causing mechanical strength reduction. Results include the presentation of a damage assessment model that could help on the correlation between the damaged region and the mechanical properties, including the contribution of the fractal dimension.ElsevierRepositório Científico do Instituto Politécnico do PortoDurão, Luís MiguelSilva, Jorge MiguelFerreira, FilipeAbreu, Stella MMatos, João E.2017-122117-01-01T00:00:00Z2017-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/11501eng0263-822310.1016/j.compstruct.2017.08.080metadata only accessinfo: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:RCAAP2023-03-13T12:53:33Zoai:recipp.ipp.pt:10400.22/11501Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:31:51.902597Repositório 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 |
Correlation of drilling damage with mechanical strength: A geometrical approach |
title |
Correlation of drilling damage with mechanical strength: A geometrical approach |
spellingShingle |
Correlation of drilling damage with mechanical strength: A geometrical approach Durão, Luís Miguel Composite materials Machining Delamination Enhanced radiography Damage assessment Mechanical testing |
title_short |
Correlation of drilling damage with mechanical strength: A geometrical approach |
title_full |
Correlation of drilling damage with mechanical strength: A geometrical approach |
title_fullStr |
Correlation of drilling damage with mechanical strength: A geometrical approach |
title_full_unstemmed |
Correlation of drilling damage with mechanical strength: A geometrical approach |
title_sort |
Correlation of drilling damage with mechanical strength: A geometrical approach |
author |
Durão, Luís Miguel |
author_facet |
Durão, Luís Miguel Silva, Jorge Miguel Ferreira, Filipe Abreu, Stella M Matos, João E. |
author_role |
author |
author2 |
Silva, Jorge Miguel Ferreira, Filipe Abreu, Stella M Matos, João E. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico do Porto |
dc.contributor.author.fl_str_mv |
Durão, Luís Miguel Silva, Jorge Miguel Ferreira, Filipe Abreu, Stella M Matos, João E. |
dc.subject.por.fl_str_mv |
Composite materials Machining Delamination Enhanced radiography Damage assessment Mechanical testing |
topic |
Composite materials Machining Delamination Enhanced radiography Damage assessment Mechanical testing |
description |
Nowadays composites are one of the most interesting groups of materials with applications in several technologically advanced fields like aeronautics, automotive or medicine among others. The great demand for this material comes from its low weight and high specific strength resulting in a good option for several demanding uses. One of the main advantages is related to the ability to produce parts in a near-net shape. However, assembly requirements normally include secondary operations like drilling. The resulting damage can affect the mechanical properties of the material questioning product reliability. In this work the authors present a comparative study of different combinations of tools, cutting speeds and feed rates associated with a method of image analysis that includes fractal dimension, a geometrical feature of the damaged region. This mathematical feature accounts for the irregularity of the damage boundary that can act as a stress concentration factor, thus causing mechanical strength reduction. Results include the presentation of a damage assessment model that could help on the correlation between the damaged region and the mechanical properties, including the contribution of the fractal dimension. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12 2017-12-01T00:00:00Z 2117-01-01T00:00:00Z |
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/10400.22/11501 |
url |
http://hdl.handle.net/10400.22/11501 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0263-8223 10.1016/j.compstruct.2017.08.080 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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 |
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1799131412795752448 |