New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Livro |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/10815 |
Resumo: | Mechanical tests for measurement of hardness are fundamental to evaluate some metallic materials properties, like wear resistance, ductility and flow tension. The manual process for hardness measurement is very interpretive and subjective, as the reading of needed values (diameters or diagonals) of the indenter on the material in test depends directly on operators viewpoint (parallax effect), appropriate calibration of test machine and operators experience. Additionally, one must notice that operators fatigue or tiredness, due to a high number of tests done, is highly prone to measurement errors. In this context, the main goals of this work were the development and analyze of a semiautomatic system, based on image analysis and processing techniques, able to determine the Vickers and Brinell hardness values from indentation images. The results obtained using the system developed were compared with those obtained by the conventional manual process. From this comparison, one could conclude that the system developed obtained more accurate and faster results |
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New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurementEngenhariaEngineeringMechanical tests for measurement of hardness are fundamental to evaluate some metallic materials properties, like wear resistance, ductility and flow tension. The manual process for hardness measurement is very interpretive and subjective, as the reading of needed values (diameters or diagonals) of the indenter on the material in test depends directly on operators viewpoint (parallax effect), appropriate calibration of test machine and operators experience. Additionally, one must notice that operators fatigue or tiredness, due to a high number of tests done, is highly prone to measurement errors. In this context, the main goals of this work were the development and analyze of a semiautomatic system, based on image analysis and processing techniques, able to determine the Vickers and Brinell hardness values from indentation images. The results obtained using the system developed were compared with those obtained by the conventional manual process. From this comparison, one could conclude that the system developed obtained more accurate and faster results20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bookapplication/pdfhttps://hdl.handle.net/10216/10815engVictor Hugo Costa de AlbuquerqueTarique da Silvira CavalcantePedro Pedrosa Rebouças FilhoJoão Manuel R. S. Tavaresinfo: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:RCAAP2023-11-29T13:52:37Zoai:repositorio-aberto.up.pt:10216/10815Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:49:28.892151Repositório 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 |
New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement |
title |
New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement |
spellingShingle |
New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement Victor Hugo Costa de Albuquerque Engenharia Engineering |
title_short |
New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement |
title_full |
New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement |
title_fullStr |
New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement |
title_full_unstemmed |
New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement |
title_sort |
New system based on image processing and analysis techniques for Vickers and Brinell hardness semi-automatic measurement |
author |
Victor Hugo Costa de Albuquerque |
author_facet |
Victor Hugo Costa de Albuquerque Tarique da Silvira Cavalcante Pedro Pedrosa Rebouças Filho João Manuel R. S. Tavares |
author_role |
author |
author2 |
Tarique da Silvira Cavalcante Pedro Pedrosa Rebouças Filho João Manuel R. S. Tavares |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Victor Hugo Costa de Albuquerque Tarique da Silvira Cavalcante Pedro Pedrosa Rebouças Filho João Manuel R. S. Tavares |
dc.subject.por.fl_str_mv |
Engenharia Engineering |
topic |
Engenharia Engineering |
description |
Mechanical tests for measurement of hardness are fundamental to evaluate some metallic materials properties, like wear resistance, ductility and flow tension. The manual process for hardness measurement is very interpretive and subjective, as the reading of needed values (diameters or diagonals) of the indenter on the material in test depends directly on operators viewpoint (parallax effect), appropriate calibration of test machine and operators experience. Additionally, one must notice that operators fatigue or tiredness, due to a high number of tests done, is highly prone to measurement errors. In this context, the main goals of this work were the development and analyze of a semiautomatic system, based on image analysis and processing techniques, able to determine the Vickers and Brinell hardness values from indentation images. The results obtained using the system developed were compared with those obtained by the conventional manual process. From this comparison, one could conclude that the system developed obtained more accurate and faster results |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2009-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/book |
format |
book |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/10216/10815 |
url |
https://hdl.handle.net/10216/10815 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.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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1799135814351847425 |