Effect of fatigue on tropical wood species
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ambiente construído (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212022000200187 |
Resumo: | Abstract The aim of present study was to create a theoretical model that allowed, with security and reliability, to obtain values of strength and stiffness to which the structural element will be submitted throughout its useful life. The effect was studied for strength and stiffness properties, and the modulus of elasticity (EM) and bending strength (fM) on static bending test were evaluated according to the increasing number of cycles of the fatigue test for the five classes of hardwoods, recommended by NBR 7190 Standard Code. A reduction in strength and stiffness properties was observed with increasing loading Ncycles applied at two frequency levels. From the multivariate regression models and the respective determination coefficients, a generic model was obtained for the set involving the five wood species, emphasizing the insertion of the apparent density as an independent variable, which allowed a greater generalization of the use of the adjustments in the estimation of the EM and fM properties, presenting significant determination coefficients, ranging between 67.89% and 70.58%. |
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Effect of fatigue on tropical wood speciesPropertiesStrengthStiffnessWoodAbstract The aim of present study was to create a theoretical model that allowed, with security and reliability, to obtain values of strength and stiffness to which the structural element will be submitted throughout its useful life. The effect was studied for strength and stiffness properties, and the modulus of elasticity (EM) and bending strength (fM) on static bending test were evaluated according to the increasing number of cycles of the fatigue test for the five classes of hardwoods, recommended by NBR 7190 Standard Code. A reduction in strength and stiffness properties was observed with increasing loading Ncycles applied at two frequency levels. From the multivariate regression models and the respective determination coefficients, a generic model was obtained for the set involving the five wood species, emphasizing the insertion of the apparent density as an independent variable, which allowed a greater generalization of the use of the adjustments in the estimation of the EM and fM properties, presenting significant determination coefficients, ranging between 67.89% and 70.58%.Associação Nacional de Tecnologia do Ambiente Construído - ANTAC2022-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212022000200187Ambiente Construído v.22 n.2 2022reponame:Ambiente construído (Online)instname:Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)instacron:ANTAC10.1590/s1678-86212022000200600info:eu-repo/semantics/openAccessCarvalho,Johnny SoaresChristoforo,André LuisLahr,Francisco Antonio RoccoAquino,Vinicius Borges de Mouraeng2022-03-14T00:00:00Zoai:scielo:S1678-86212022000200187Revistahttps://seer.ufrgs.br/ambienteconstruidohttps://old.scielo.br/oai/scielo-oai.php||ambienteconstruido@ufrgs.br1678-86211415-8876opendoar:2022-03-14T00:00Ambiente construído (Online) - Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)false |
dc.title.none.fl_str_mv |
Effect of fatigue on tropical wood species |
title |
Effect of fatigue on tropical wood species |
spellingShingle |
Effect of fatigue on tropical wood species Carvalho,Johnny Soares Properties Strength Stiffness Wood |
title_short |
Effect of fatigue on tropical wood species |
title_full |
Effect of fatigue on tropical wood species |
title_fullStr |
Effect of fatigue on tropical wood species |
title_full_unstemmed |
Effect of fatigue on tropical wood species |
title_sort |
Effect of fatigue on tropical wood species |
author |
Carvalho,Johnny Soares |
author_facet |
Carvalho,Johnny Soares Christoforo,André Luis Lahr,Francisco Antonio Rocco Aquino,Vinicius Borges de Moura |
author_role |
author |
author2 |
Christoforo,André Luis Lahr,Francisco Antonio Rocco Aquino,Vinicius Borges de Moura |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Carvalho,Johnny Soares Christoforo,André Luis Lahr,Francisco Antonio Rocco Aquino,Vinicius Borges de Moura |
dc.subject.por.fl_str_mv |
Properties Strength Stiffness Wood |
topic |
Properties Strength Stiffness Wood |
description |
Abstract The aim of present study was to create a theoretical model that allowed, with security and reliability, to obtain values of strength and stiffness to which the structural element will be submitted throughout its useful life. The effect was studied for strength and stiffness properties, and the modulus of elasticity (EM) and bending strength (fM) on static bending test were evaluated according to the increasing number of cycles of the fatigue test for the five classes of hardwoods, recommended by NBR 7190 Standard Code. A reduction in strength and stiffness properties was observed with increasing loading Ncycles applied at two frequency levels. From the multivariate regression models and the respective determination coefficients, a generic model was obtained for the set involving the five wood species, emphasizing the insertion of the apparent density as an independent variable, which allowed a greater generalization of the use of the adjustments in the estimation of the EM and fM properties, presenting significant determination coefficients, ranging between 67.89% and 70.58%. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212022000200187 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212022000200187 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1678-86212022000200600 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Nacional de Tecnologia do Ambiente Construído - ANTAC |
publisher.none.fl_str_mv |
Associação Nacional de Tecnologia do Ambiente Construído - ANTAC |
dc.source.none.fl_str_mv |
Ambiente Construído v.22 n.2 2022 reponame:Ambiente construído (Online) instname:Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) instacron:ANTAC |
instname_str |
Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) |
instacron_str |
ANTAC |
institution |
ANTAC |
reponame_str |
Ambiente construído (Online) |
collection |
Ambiente construído (Online) |
repository.name.fl_str_mv |
Ambiente construído (Online) - Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) |
repository.mail.fl_str_mv |
||ambienteconstruido@ufrgs.br |
_version_ |
1754209105305665536 |