Full characterization of Vatairea sp wood specie
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFMG |
Texto Completo: | http://dx.doi.org/10.5923/j.ijme.20160603.05 http://hdl.handle.net/1843/56858 https://orcid.org/0000-0002-3510-8498 https://orcid.org/0000-0001-8226-172X https://orcid.org/0000-0002-4066-080X https://orcid.org/0000-0003-3168-7055 https://orcid.org/0000-0002-2538-3525 |
Resumo: | In Brazil, wood is a material which has been used for years in different purposes. The variety of Brazilian tropical wood species is expressive, nonetheless only a few of them are considered in structural design. Taking in account possibility of eventual shortages of these well-known wood species, characterization of alternative essences is presented as fundamental for maintenance of wood supply for civil construction. In Brazil, the structural dimensioning and timber characterization are specified by ABNT NBR 7190:1997 (Timber structures design), in its Annex B. This work aimed, with the aid of Brazilian Code, determining physical (4) and mechanical (13) properties of Angelim Saia (Vatairea sp.). Besides, with regression model (linear, exponential, geometric and logarithmic) based in analysis of variance (ANOVA), it was aimed to estimate resistance values and stiffness in function of the density, once this is an easy-obtainable property for wood. From a set of twelve aleatory pieces, twelve specimens were produced for each test type, totalizing 204 experimental measurements. Results of mechanical properties showed compatible performance with other species already established for use in structure, which shows the potential of Angelim Saia for structural purposes. From regression models for estimate strength and stiffness values, it was possible conclude that not all properties can be estimate by density. Better results were showed by the geometric model in estimation of hardness parallel to grain, who provided determination coefficient (R²) close to 70%. |
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2023-07-21T17:52:01Z2023-07-21T17:52:01Z2016639296http://dx.doi.org/10.5923/j.ijme.20160603.052166-5400http://hdl.handle.net/1843/56858https://orcid.org/0000-0002-3510-8498https://orcid.org/0000-0001-8226-172Xhttps://orcid.org/0000-0002-4066-080Xhttps://orcid.org/0000-0003-3168-7055https://orcid.org/0000-0002-2538-3525In Brazil, wood is a material which has been used for years in different purposes. The variety of Brazilian tropical wood species is expressive, nonetheless only a few of them are considered in structural design. Taking in account possibility of eventual shortages of these well-known wood species, characterization of alternative essences is presented as fundamental for maintenance of wood supply for civil construction. In Brazil, the structural dimensioning and timber characterization are specified by ABNT NBR 7190:1997 (Timber structures design), in its Annex B. This work aimed, with the aid of Brazilian Code, determining physical (4) and mechanical (13) properties of Angelim Saia (Vatairea sp.). Besides, with regression model (linear, exponential, geometric and logarithmic) based in analysis of variance (ANOVA), it was aimed to estimate resistance values and stiffness in function of the density, once this is an easy-obtainable property for wood. From a set of twelve aleatory pieces, twelve specimens were produced for each test type, totalizing 204 experimental measurements. Results of mechanical properties showed compatible performance with other species already established for use in structure, which shows the potential of Angelim Saia for structural purposes. From regression models for estimate strength and stiffness values, it was possible conclude that not all properties can be estimate by density. Better results were showed by the geometric model in estimation of hardness parallel to grain, who provided determination coefficient (R²) close to 70%.No Brasil, a madeira é um material que vem sendo utilizado há anos com diversas finalidades. A variedade de espécies de madeiras tropicais brasileiras é expressiva, porém poucas delas são consideradas no projeto estrutural. Levando em conta a possibilidade de eventual escassez dessas conhecidas espécies de madeira, a caracterização de essências alternativas se apresenta como fundamental para a manutenção do abastecimento de madeira para a construção civil. No Brasil, o dimensionamento estrutural e a caracterização da madeira são especificados pela ABNT NBR 7190:1997 (Projeto de estruturas de madeira), em seu Anexo B. Este trabalho objetivou, com auxílio da Norma Brasileira, determinar as propriedades físicas (4) e mecânicas (13) do Angelim Saia (Vatairea sp.). Além disso, com modelo de regressão (linear, exponencial, geométrica e logarítmica) baseado em análise de variância (ANOVA), buscou-se estimar valores de resistência e rigidez em função da densidade, uma vez que esta é uma propriedade de fácil obtenção para a madeira. A partir de um conjunto de doze peças aleatórias, foram produzidos doze corpos de prova para cada tipo de ensaio, totalizando 204 medidas experimentais. Os resultados das propriedades mecânicas mostraram desempenho compatível com outras espécies já consagradas para uso em estrutura, o que mostra o potencial do Angelim Saia para fins estruturais. A partir de modelos de regressão para estimativa de valores de resistência e rigidez, foi possível concluir que nem todas as propriedades podem ser estimadas por densidade. Melhores resultados foram apresentados pelo modelo geométrico na estimativa da dureza paralela ao grão, que proporcionou coeficiente de determinação (R²) próximo a 70%.engUniversidade Federal de Minas GeraisUFMGBrasilENG - DEPARTAMENTO DE ENGENHARIA MATERIAIS E DA CONSTRUÇÃO CIVILInternational Journal of Materials EngineeringVataireaDensidadeMadeiraVatairea spCharacterizationDensityRegression modelFull characterization of Vatairea sp wood specieCaracterização completa da espécie lenhosa Vatairea spinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://article.sapub.org/10.5923.j.ijme.20160603.05.htmlFrancisco Antônio Rocco LahrBruno H C AftimusFelipe Nascimento ArroyoDiego H de AlmeidaAndré Luis ChristoforoEduardo ChahudLuiz Antônio Melgaço Nunes Brancoapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/56858/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALFull characterization of Vatairea sp wood specie.pdfFull characterization of Vatairea sp wood specie.pdfapplication/pdf277592https://repositorio.ufmg.br/bitstream/1843/56858/2/Full%20characterization%20of%20Vatairea%20sp%20wood%20specie.pdfe0e7cdff643c5af8ee405d5e0bf6278eMD521843/568582023-07-21 14:52:01.99oai:repositorio.ufmg.br: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Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-07-21T17:52:01Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.pt_BR.fl_str_mv |
Full characterization of Vatairea sp wood specie |
dc.title.alternative.pt_BR.fl_str_mv |
Caracterização completa da espécie lenhosa Vatairea sp |
title |
Full characterization of Vatairea sp wood specie |
spellingShingle |
Full characterization of Vatairea sp wood specie Francisco Antônio Rocco Lahr Vatairea sp Characterization Density Regression model Vatairea Densidade Madeira |
title_short |
Full characterization of Vatairea sp wood specie |
title_full |
Full characterization of Vatairea sp wood specie |
title_fullStr |
Full characterization of Vatairea sp wood specie |
title_full_unstemmed |
Full characterization of Vatairea sp wood specie |
title_sort |
Full characterization of Vatairea sp wood specie |
author |
Francisco Antônio Rocco Lahr |
author_facet |
Francisco Antônio Rocco Lahr Bruno H C Aftimus Felipe Nascimento Arroyo Diego H de Almeida André Luis Christoforo Eduardo Chahud Luiz Antônio Melgaço Nunes Branco |
author_role |
author |
author2 |
Bruno H C Aftimus Felipe Nascimento Arroyo Diego H de Almeida André Luis Christoforo Eduardo Chahud Luiz Antônio Melgaço Nunes Branco |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Francisco Antônio Rocco Lahr Bruno H C Aftimus Felipe Nascimento Arroyo Diego H de Almeida André Luis Christoforo Eduardo Chahud Luiz Antônio Melgaço Nunes Branco |
dc.subject.por.fl_str_mv |
Vatairea sp Characterization Density Regression model |
topic |
Vatairea sp Characterization Density Regression model Vatairea Densidade Madeira |
dc.subject.other.pt_BR.fl_str_mv |
Vatairea Densidade Madeira |
description |
In Brazil, wood is a material which has been used for years in different purposes. The variety of Brazilian tropical wood species is expressive, nonetheless only a few of them are considered in structural design. Taking in account possibility of eventual shortages of these well-known wood species, characterization of alternative essences is presented as fundamental for maintenance of wood supply for civil construction. In Brazil, the structural dimensioning and timber characterization are specified by ABNT NBR 7190:1997 (Timber structures design), in its Annex B. This work aimed, with the aid of Brazilian Code, determining physical (4) and mechanical (13) properties of Angelim Saia (Vatairea sp.). Besides, with regression model (linear, exponential, geometric and logarithmic) based in analysis of variance (ANOVA), it was aimed to estimate resistance values and stiffness in function of the density, once this is an easy-obtainable property for wood. From a set of twelve aleatory pieces, twelve specimens were produced for each test type, totalizing 204 experimental measurements. Results of mechanical properties showed compatible performance with other species already established for use in structure, which shows the potential of Angelim Saia for structural purposes. From regression models for estimate strength and stiffness values, it was possible conclude that not all properties can be estimate by density. Better results were showed by the geometric model in estimation of hardness parallel to grain, who provided determination coefficient (R²) close to 70%. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2023-07-21T17:52:01Z |
dc.date.available.fl_str_mv |
2023-07-21T17:52:01Z |
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/1843/56858 |
dc.identifier.doi.pt_BR.fl_str_mv |
http://dx.doi.org/10.5923/j.ijme.20160603.05 |
dc.identifier.issn.pt_BR.fl_str_mv |
2166-5400 |
dc.identifier.orcid.pt_BR.fl_str_mv |
https://orcid.org/0000-0002-3510-8498 https://orcid.org/0000-0001-8226-172X https://orcid.org/0000-0002-4066-080X https://orcid.org/0000-0003-3168-7055 https://orcid.org/0000-0002-2538-3525 |
url |
http://dx.doi.org/10.5923/j.ijme.20160603.05 http://hdl.handle.net/1843/56858 https://orcid.org/0000-0002-3510-8498 https://orcid.org/0000-0001-8226-172X https://orcid.org/0000-0002-4066-080X https://orcid.org/0000-0003-3168-7055 https://orcid.org/0000-0002-2538-3525 |
identifier_str_mv |
2166-5400 |
dc.language.iso.fl_str_mv |
eng |
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eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
International Journal of Materials Engineering |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Universidade Federal de Minas Gerais |
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UFMG |
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Brasil |
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ENG - DEPARTAMENTO DE ENGENHARIA MATERIAIS E DA CONSTRUÇÃO CIVIL |
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Universidade Federal de Minas Gerais |
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