Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1517-7076-RMAT-2022-0196 http://hdl.handle.net/11449/246142 |
Resumo: | Characterization of construction materials is a piece of essential knowledge to ensure the structural stability and strength of any building. The strength of materials is an effective prediction prescribed by technical stan-dards, which delimit the resistive behaviors in different conditions. Physical-mechanical properties of timber allow the rational application of this bioresource in structural projects. However, tests to determine mechanical properties require large equipment and a skilled workforce, found in few institutions and specific research centers. The microscopy and regression models may establish an alternative to understanding the properties of wood. The present paper aimed to demonstrate the feasibility of estimating the mechanical properties of Eucalyptus wood as a function of its anatomical characteristics and apparent density. Ten batches of different eucalypt species were selected to predict the tensile strength parallel to the grain, tensile strength normal to grain, and modulus of elasticity in tensile parallel to the grain, as well as three different anatomical parameters (fibers, vessels, and rays) of the wood samples according to two Brazilian standard documents. In practice, the proposed regression models were excellent, as the R2 values were equal to 90.55, 86.55, and 67.95% for estimating Et0, ft0, and ft90, respectively. |
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Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent densityEstimativa da resistência à tração nas madeiras de dez espécies de eucalipto em função de parâmetros anatômicos e da densidade aparenteanatomyapparent densityEucalyptusmechanical propertiesregression modelsCharacterization of construction materials is a piece of essential knowledge to ensure the structural stability and strength of any building. The strength of materials is an effective prediction prescribed by technical stan-dards, which delimit the resistive behaviors in different conditions. Physical-mechanical properties of timber allow the rational application of this bioresource in structural projects. However, tests to determine mechanical properties require large equipment and a skilled workforce, found in few institutions and specific research centers. The microscopy and regression models may establish an alternative to understanding the properties of wood. The present paper aimed to demonstrate the feasibility of estimating the mechanical properties of Eucalyptus wood as a function of its anatomical characteristics and apparent density. Ten batches of different eucalypt species were selected to predict the tensile strength parallel to the grain, tensile strength normal to grain, and modulus of elasticity in tensile parallel to the grain, as well as three different anatomical parameters (fibers, vessels, and rays) of the wood samples according to two Brazilian standard documents. In practice, the proposed regression models were excellent, as the R2 values were equal to 90.55, 86.55, and 67.95% for estimating Et0, ft0, and ft90, respectively.Universidade Federal de São Carlos Centro de Ciências Exatas e de Tecnologia Programa de Pós-Graduação em Engenharia Civil, Rodovia Washington Luiz km 235, SPUniversidade de São Paulo Departamento de Estruturas da Escola de Engenharia de São Carlos Laboratório de Madeiras e de Estruturas de Madeira, Avenida Trabalhador São-carlense 400, SPUniversidade Estadual Paulista Instituto de Ciências e Engenharia LIGNO-Desenvolvimento de Produtos Lignocelulósicos, Rua Geraldo Alckmin 519, SPUniversidade Estadual Paulista Instituto de Ciências e Engenharia LIGNO-Desenvolvimento de Produtos Lignocelulósicos, Rua Geraldo Alckmin 519, SPUniversidade Federal de São Carlos (UFSCar)Universidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)Marini, Lucas JoséCavalheiro, Raquel Schmittde Araujo, Victor Almeida [UNESP]Lahr, Francisco Antonio RoccoChristoforo, André Luis2023-07-29T12:32:49Z2023-07-29T12:32:49Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1590/1517-7076-RMAT-2022-0196Revista Materia, v. 27, n. 4, 2022.1517-7076http://hdl.handle.net/11449/24614210.1590/1517-7076-RMAT-2022-01962-s2.0-85140432550Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Materiainfo:eu-repo/semantics/openAccess2023-07-29T12:32:49Zoai:repositorio.unesp.br:11449/246142Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:41:11.143725Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density Estimativa da resistência à tração nas madeiras de dez espécies de eucalipto em função de parâmetros anatômicos e da densidade aparente |
title |
Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density |
spellingShingle |
Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density Marini, Lucas José anatomy apparent density Eucalyptus mechanical properties regression models |
title_short |
Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density |
title_full |
Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density |
title_fullStr |
Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density |
title_full_unstemmed |
Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density |
title_sort |
Estimation of tensile strength in timbers of ten eucalypt species as a function of anatomical parameters and apparent density |
author |
Marini, Lucas José |
author_facet |
Marini, Lucas José Cavalheiro, Raquel Schmitt de Araujo, Victor Almeida [UNESP] Lahr, Francisco Antonio Rocco Christoforo, André Luis |
author_role |
author |
author2 |
Cavalheiro, Raquel Schmitt de Araujo, Victor Almeida [UNESP] Lahr, Francisco Antonio Rocco Christoforo, André Luis |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Carlos (UFSCar) Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Marini, Lucas José Cavalheiro, Raquel Schmitt de Araujo, Victor Almeida [UNESP] Lahr, Francisco Antonio Rocco Christoforo, André Luis |
dc.subject.por.fl_str_mv |
anatomy apparent density Eucalyptus mechanical properties regression models |
topic |
anatomy apparent density Eucalyptus mechanical properties regression models |
description |
Characterization of construction materials is a piece of essential knowledge to ensure the structural stability and strength of any building. The strength of materials is an effective prediction prescribed by technical stan-dards, which delimit the resistive behaviors in different conditions. Physical-mechanical properties of timber allow the rational application of this bioresource in structural projects. However, tests to determine mechanical properties require large equipment and a skilled workforce, found in few institutions and specific research centers. The microscopy and regression models may establish an alternative to understanding the properties of wood. The present paper aimed to demonstrate the feasibility of estimating the mechanical properties of Eucalyptus wood as a function of its anatomical characteristics and apparent density. Ten batches of different eucalypt species were selected to predict the tensile strength parallel to the grain, tensile strength normal to grain, and modulus of elasticity in tensile parallel to the grain, as well as three different anatomical parameters (fibers, vessels, and rays) of the wood samples according to two Brazilian standard documents. In practice, the proposed regression models were excellent, as the R2 values were equal to 90.55, 86.55, and 67.95% for estimating Et0, ft0, and ft90, respectively. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 2023-07-29T12:32:49Z 2023-07-29T12:32:49Z |
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://dx.doi.org/10.1590/1517-7076-RMAT-2022-0196 Revista Materia, v. 27, n. 4, 2022. 1517-7076 http://hdl.handle.net/11449/246142 10.1590/1517-7076-RMAT-2022-0196 2-s2.0-85140432550 |
url |
http://dx.doi.org/10.1590/1517-7076-RMAT-2022-0196 http://hdl.handle.net/11449/246142 |
identifier_str_mv |
Revista Materia, v. 27, n. 4, 2022. 1517-7076 10.1590/1517-7076-RMAT-2022-0196 2-s2.0-85140432550 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Materia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128400932470784 |