Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022
Autor(a) principal: | |
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Data de Publicação: | 2024 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | https://hdl.handle.net/11449/253220 |
Resumo: | Brazil possesses an extensive forested territory conducive to the prevalence of numerous tree species, including Dinizia excelsa, commonly known as Angelim-Vermelho. The utilization of a wood species in a structural system necessitates a comprehensive analysis of its physical-mechanical properties. In this context, a crucial variable for study is the moisture content, the variations of which, a priori, can significantly impact wood properties. Although the Brazilian code prescribes specific models to adjust strength and stiffness concerning the reference mois-ture, allowing a linear increase as moisture content decreases, this phenomenon may not universally apply to all wood species. Some species may exhibit statisti-cally constant or even decreased values, contradicting code predictions. There-fore, by employing analysis of variance (ANOVA) at a 5% significance level, this research aims to examine the impact of moisture content variation (ranging from 12% to the fiber saturation point – FSP) on 12 mechanical properties of Dinizia excelsa wood. Each type of test involved the creation of 12 specimens, totaling 360 determinations. Among the 12 mechanical properties examined, four showed no significant variations between 12% moisture and the FSP. This suggests that the code formulation inadequately addresses all properties for all wood species. Furthermore, the study revealed that correction models can result in strength val-ues higher than experimentally obtained, thus overestimating structural capaci-ties, and compromising safety. Therefore, a critical reassessment of the existing Brazilian code is imperative. |
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Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022Análise crítica das propriedades mecânicas da madeira de Dinizia excelsa em relação às variações de umidade: implicações para a ABNT NBR 7190:2022Brazil possesses an extensive forested territory conducive to the prevalence of numerous tree species, including Dinizia excelsa, commonly known as Angelim-Vermelho. The utilization of a wood species in a structural system necessitates a comprehensive analysis of its physical-mechanical properties. In this context, a crucial variable for study is the moisture content, the variations of which, a priori, can significantly impact wood properties. Although the Brazilian code prescribes specific models to adjust strength and stiffness concerning the reference mois-ture, allowing a linear increase as moisture content decreases, this phenomenon may not universally apply to all wood species. Some species may exhibit statisti-cally constant or even decreased values, contradicting code predictions. There-fore, by employing analysis of variance (ANOVA) at a 5% significance level, this research aims to examine the impact of moisture content variation (ranging from 12% to the fiber saturation point – FSP) on 12 mechanical properties of Dinizia excelsa wood. Each type of test involved the creation of 12 specimens, totaling 360 determinations. Among the 12 mechanical properties examined, four showed no significant variations between 12% moisture and the FSP. This suggests that the code formulation inadequately addresses all properties for all wood species. Furthermore, the study revealed that correction models can result in strength val-ues higher than experimentally obtained, thus overestimating structural capaci-ties, and compromising safety. Therefore, a critical reassessment of the existing Brazilian code is imperative.Versão final do editor2024-02-07T12:46:37Z2024-02-07T12:46:37Z2024-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFRAGA, Iuri Fazolin; ARROYO, Felipe Nascimento; MASCARENHAS, Fernando Junior Resende; RUTHES, Heloiza Candeia; SOARES, Larissa Soriani Zanini RIbeiro; AQUINO, Vinicius Borges de Moura; CHRISTOFORO, Andre Luis; LAHR, Francisco Antonio Rocco. Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022. Revista caderno Pedagógico, Curitiba, v. 21, n. 1, p. 2257-2274. 2024.1983-0882https://hdl.handle.net/11449/25322010.54033/cadpedv21n1-117engREVISTA CADERNO PEDAGÓGICOFraga, Iuri FazolinArroyo, Felipe NascimentoMascarenhas, Fernando Junior ResendeRuthes, Heloiza CandeiaSoares, Larissa Soriani Zanini RIbeiroAquino, Vinicius Borges de Moura [UNESP]Christoforo, Andre LuisLahr, Francisco Antonio Roccoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESP2024-02-08T06:58:46Zoai:repositorio.unesp.br:11449/253220Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-02-08T06:58:46Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022 Análise crítica das propriedades mecânicas da madeira de Dinizia excelsa em relação às variações de umidade: implicações para a ABNT NBR 7190:2022 |
title |
Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022 |
spellingShingle |
Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022 Fraga, Iuri Fazolin |
title_short |
Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022 |
title_full |
Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022 |
title_fullStr |
Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022 |
title_full_unstemmed |
Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022 |
title_sort |
Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022 |
author |
Fraga, Iuri Fazolin |
author_facet |
Fraga, Iuri Fazolin Arroyo, Felipe Nascimento Mascarenhas, Fernando Junior Resende Ruthes, Heloiza Candeia Soares, Larissa Soriani Zanini RIbeiro Aquino, Vinicius Borges de Moura [UNESP] Christoforo, Andre Luis Lahr, Francisco Antonio Rocco |
author_role |
author |
author2 |
Arroyo, Felipe Nascimento Mascarenhas, Fernando Junior Resende Ruthes, Heloiza Candeia Soares, Larissa Soriani Zanini RIbeiro Aquino, Vinicius Borges de Moura [UNESP] Christoforo, Andre Luis Lahr, Francisco Antonio Rocco |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Fraga, Iuri Fazolin Arroyo, Felipe Nascimento Mascarenhas, Fernando Junior Resende Ruthes, Heloiza Candeia Soares, Larissa Soriani Zanini RIbeiro Aquino, Vinicius Borges de Moura [UNESP] Christoforo, Andre Luis Lahr, Francisco Antonio Rocco |
description |
Brazil possesses an extensive forested territory conducive to the prevalence of numerous tree species, including Dinizia excelsa, commonly known as Angelim-Vermelho. The utilization of a wood species in a structural system necessitates a comprehensive analysis of its physical-mechanical properties. In this context, a crucial variable for study is the moisture content, the variations of which, a priori, can significantly impact wood properties. Although the Brazilian code prescribes specific models to adjust strength and stiffness concerning the reference mois-ture, allowing a linear increase as moisture content decreases, this phenomenon may not universally apply to all wood species. Some species may exhibit statisti-cally constant or even decreased values, contradicting code predictions. There-fore, by employing analysis of variance (ANOVA) at a 5% significance level, this research aims to examine the impact of moisture content variation (ranging from 12% to the fiber saturation point – FSP) on 12 mechanical properties of Dinizia excelsa wood. Each type of test involved the creation of 12 specimens, totaling 360 determinations. Among the 12 mechanical properties examined, four showed no significant variations between 12% moisture and the FSP. This suggests that the code formulation inadequately addresses all properties for all wood species. Furthermore, the study revealed that correction models can result in strength val-ues higher than experimentally obtained, thus overestimating structural capaci-ties, and compromising safety. Therefore, a critical reassessment of the existing Brazilian code is imperative. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-02-07T12:46:37Z 2024-02-07T12:46:37Z 2024-01 |
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 |
FRAGA, Iuri Fazolin; ARROYO, Felipe Nascimento; MASCARENHAS, Fernando Junior Resende; RUTHES, Heloiza Candeia; SOARES, Larissa Soriani Zanini RIbeiro; AQUINO, Vinicius Borges de Moura; CHRISTOFORO, Andre Luis; LAHR, Francisco Antonio Rocco. Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022. Revista caderno Pedagógico, Curitiba, v. 21, n. 1, p. 2257-2274. 2024. 1983-0882 https://hdl.handle.net/11449/253220 10.54033/cadpedv21n1-117 |
identifier_str_mv |
FRAGA, Iuri Fazolin; ARROYO, Felipe Nascimento; MASCARENHAS, Fernando Junior Resende; RUTHES, Heloiza Candeia; SOARES, Larissa Soriani Zanini RIbeiro; AQUINO, Vinicius Borges de Moura; CHRISTOFORO, Andre Luis; LAHR, Francisco Antonio Rocco. Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022. Revista caderno Pedagógico, Curitiba, v. 21, n. 1, p. 2257-2274. 2024. 1983-0882 10.54033/cadpedv21n1-117 |
url |
https://hdl.handle.net/11449/253220 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
REVISTA CADERNO PEDAGÓGICO |
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 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 |
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Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
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