Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain

Abstract: Wood strength values are calculated based on the characteristic value, which corresponds to the 5 % percentile of a given probability distribution model. For a few number of samples (12 samples), the Brazilian standard establishes an estimator of the characteristic compressive strength par...

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Autores principales:	Christoforo,André Luis, Aquino,Vinicius Borges de Moura, Govone,José Silvio, Dias,Alfredo Manuel Pereira Geraldes, Panzera,Tulio Hallak, Lahr,Francisco Antonio Rocco
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2020
Materias:	Characteristic value mechanical properties probability distribution Tabebuia spp. wood
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000300281
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spelling	oai:scielo:S0718-221X20200003002812020-06-26Alternative model to determine the characteristic strength value of wood in the compression parallel to the grainChristoforo,André LuisAquino,Vinicius Borges de MouraGovone,José SilvioDias,Alfredo Manuel Pereira GeraldesPanzera,Tulio HallakLahr,Francisco Antonio Rocco Characteristic value mechanical properties probability distribution Tabebuia spp. wood Abstract: Wood strength values are calculated based on the characteristic value, which corresponds to the 5 % percentile of a given probability distribution model. For a few number of samples (12 samples), the Brazilian standard establishes an estimator of the characteristic compressive strength parallel to grain of the wood, which may provide a different result when compared with the characteristic value coming from a suitable probability distribution model. Considering the strength results in the parallel compression to the grain of 45 wood species of the hardwood group, Normal, LogNormal, Weibull and Exponential probability distribution models were used for each specie with the purpose of determining the one with the highest adhesion. Calculated the characteristic values by the best probability model distribution, an analysis of variance (ANOVA) was performed in the estimation of the characteristic value of compressive strength, making it possible to identify the most significant terms of the models as well as the quality of the adjustment obtained on such models. The proposed regression model (R2 adj= 96,56 %) proved to be equivalent to the empirical model of the Brazilian standard. The model proposed here only depends on the mean and the lowest value obtained from the compressive strength in the parallel direction to the grain.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.22 n.3 20202020-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000300281en10.4067/S0718-221X2020005000303
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Characteristic value mechanical properties probability distribution Tabebuia spp. wood
spellingShingle	Characteristic value mechanical properties probability distribution Tabebuia spp. wood Christoforo,André Luis Aquino,Vinicius Borges de Moura Govone,José Silvio Dias,Alfredo Manuel Pereira Geraldes Panzera,Tulio Hallak Lahr,Francisco Antonio Rocco Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain
description	Abstract: Wood strength values are calculated based on the characteristic value, which corresponds to the 5 % percentile of a given probability distribution model. For a few number of samples (12 samples), the Brazilian standard establishes an estimator of the characteristic compressive strength parallel to grain of the wood, which may provide a different result when compared with the characteristic value coming from a suitable probability distribution model. Considering the strength results in the parallel compression to the grain of 45 wood species of the hardwood group, Normal, LogNormal, Weibull and Exponential probability distribution models were used for each specie with the purpose of determining the one with the highest adhesion. Calculated the characteristic values by the best probability model distribution, an analysis of variance (ANOVA) was performed in the estimation of the characteristic value of compressive strength, making it possible to identify the most significant terms of the models as well as the quality of the adjustment obtained on such models. The proposed regression model (R2 adj= 96,56 %) proved to be equivalent to the empirical model of the Brazilian standard. The model proposed here only depends on the mean and the lowest value obtained from the compressive strength in the parallel direction to the grain.
author	Christoforo,André Luis Aquino,Vinicius Borges de Moura Govone,José Silvio Dias,Alfredo Manuel Pereira Geraldes Panzera,Tulio Hallak Lahr,Francisco Antonio Rocco
author_facet	Christoforo,André Luis Aquino,Vinicius Borges de Moura Govone,José Silvio Dias,Alfredo Manuel Pereira Geraldes Panzera,Tulio Hallak Lahr,Francisco Antonio Rocco
author_sort	Christoforo,André Luis
title	Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain
title_short	Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain
title_full	Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain
title_fullStr	Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain
title_full_unstemmed	Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain
title_sort	alternative model to determine the characteristic strength value of wood in the compression parallel to the grain
publisher	Universidad del Bío-Bío
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2020000300281
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Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain

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