Critical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022

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dc.contributor.authorFraga, Iuri Fazolin
dc.contributor.authorArroyo, Felipe Nascimento
dc.contributor.authorMascarenhas, Fernando Junior Resende
dc.contributor.authorRuthes, Heloiza Candeia
dc.contributor.authorSoares, Larissa Soriani Zanini RIbeiro
dc.contributor.authorAquino, Vinicius Borges de Moura [UNESP]
dc.contributor.authorChristoforo, Andre Luis
dc.contributor.authorLahr, Francisco Antonio Rocco
dc.date.accessioned2024-02-07T12:46:37Z
dc.date.available2024-02-07T12:46:37Z
dc.date.issued2024-01
dc.description.abstractBrazil 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.en
dc.description.versionVersão final do editor
dc.identifier.citationFRAGA, 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.pt
dc.identifier.doi10.54033/cadpedv21n1-117
dc.identifier.issn1983-0882
dc.identifier.urihttps://hdl.handle.net/11449/253220
dc.language.isoeng
dc.relation.ispartofREVISTA CADERNO PEDAGÓGICO
dc.rights.accessRightsAcesso aberto
dc.titleCritical analysis of the mechanical properties of Dinizia excelsa wood in relation to moisture variations: implications for ABNT NBR 7190:2022en
dc.title.alternativeAnálise crítica das propriedades mecânicas da madeira de Dinizia excelsa em relação às variações de umidade: implicações para a ABNT NBR 7190:2022pt
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteira
unesp.departmentEngenharia Civil - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia