Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill
Autor(a) principal: | |
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Data de Publicação: | 2009 |
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/10400.22/4533 |
Resumo: | Drilling of carbon fibre/epoxy laminates is usually carried out using standard drills. However, it is necessary to adapt the processes and/or tooling as the risk of delamination, or other damages, is high. These problems can affect mechanical properties of produced parts, therefore, lower reliability. In this paper, four different drills – three commercial and a special step (prototype) – are compared in terms of thrust force during drilling and delamination. In order to evaluate damage, enhanced radiography is applied. The resulting images were then computational processed using a previously developed image processing and analysis platform. Results show that the prototype drill had encouraging results in terms of maximum thrust force and delamination reduction. Furthermore, it is possible to state that a correct choice of drill geometry, particularly the use of a pilot hole, a conservative cutting speed – 53 m/min – and a low feed rate – 0.025 mm/rev – can help to prevent delamination. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drillPolymer–matrix compositesDelaminationDamage mechanicsNon-destructive testingImage processing and analysisDrilling of carbon fibre/epoxy laminates is usually carried out using standard drills. However, it is necessary to adapt the processes and/or tooling as the risk of delamination, or other damages, is high. These problems can affect mechanical properties of produced parts, therefore, lower reliability. In this paper, four different drills – three commercial and a special step (prototype) – are compared in terms of thrust force during drilling and delamination. In order to evaluate damage, enhanced radiography is applied. The resulting images were then computational processed using a previously developed image processing and analysis platform. Results show that the prototype drill had encouraging results in terms of maximum thrust force and delamination reduction. Furthermore, it is possible to state that a correct choice of drill geometry, particularly the use of a pilot hole, a conservative cutting speed – 53 m/min – and a low feed rate – 0.025 mm/rev – can help to prevent delamination.ElsevierRepositório Científico do Instituto Politécnico do PortoMarques, A. T.Durão, Luís M.Magalhães, A. G.Silva, João F.Tavares, João Manuel R. S.2014-06-12T11:11:10Z20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/4533eng690266-35381016/j.compscitech.2009.01.025info: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:RCAAP2023-03-13T12:44:34Zoai:recipp.ipp.pt:10400.22/4533Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:25:19.577652Repositório 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 |
Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill |
title |
Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill |
spellingShingle |
Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill Marques, A. T. Polymer–matrix composites Delamination Damage mechanics Non-destructive testing Image processing and analysis |
title_short |
Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill |
title_full |
Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill |
title_fullStr |
Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill |
title_full_unstemmed |
Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill |
title_sort |
Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill |
author |
Marques, A. T. |
author_facet |
Marques, A. T. Durão, Luís M. Magalhães, A. G. Silva, João F. Tavares, João Manuel R. S. |
author_role |
author |
author2 |
Durão, Luís M. Magalhães, A. G. Silva, João F. Tavares, João Manuel R. S. |
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 |
Marques, A. T. Durão, Luís M. Magalhães, A. G. Silva, João F. Tavares, João Manuel R. S. |
dc.subject.por.fl_str_mv |
Polymer–matrix composites Delamination Damage mechanics Non-destructive testing Image processing and analysis |
topic |
Polymer–matrix composites Delamination Damage mechanics Non-destructive testing Image processing and analysis |
description |
Drilling of carbon fibre/epoxy laminates is usually carried out using standard drills. However, it is necessary to adapt the processes and/or tooling as the risk of delamination, or other damages, is high. These problems can affect mechanical properties of produced parts, therefore, lower reliability. In this paper, four different drills – three commercial and a special step (prototype) – are compared in terms of thrust force during drilling and delamination. In order to evaluate damage, enhanced radiography is applied. The resulting images were then computational processed using a previously developed image processing and analysis platform. Results show that the prototype drill had encouraging results in terms of maximum thrust force and delamination reduction. Furthermore, it is possible to state that a correct choice of drill geometry, particularly the use of a pilot hole, a conservative cutting speed – 53 m/min – and a low feed rate – 0.025 mm/rev – can help to prevent delamination. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2009-01-01T00:00:00Z 2014-06-12T11:11:10Z |
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/10400.22/4533 |
url |
http://hdl.handle.net/10400.22/4533 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
69 0266-3538 1016/j.compscitech.2009.01.025 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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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1799131346591809536 |