Effect of the sample length in compressive strength of Eucalyptus wood and charcoal

Detalhes bibliográficos
Autor(a) principal: Veiga, Taís Regina Lima Abreu
Data de Publicação: 2016
Outros Autores: Lima, José Tarcísio, Monteiro, Thiago Campos, Rocha, Maria Fernanda Vieira, de Jesus, Márcia Silva, Goulart, Selma Lopes
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1073
Resumo: Mechanical properties of charcoal are indicators of quality and they influence in steelmaking process. In general, assessment tests (falling and tumbling) present variable results compromising their reliability. So, it is important to develop methodologies that produce comparable results. This study aimed to analyze the influence of sample length to determine stiffness and strength of wood and charcoal. Samples were produced from Eucalyptus urophylla clones, presenting cross section 25 mm x 25 mm and lengths of 50 mm, 75 mm, 100 mm and 125 mm. Ten samples of each length were selected for testing wood, and another ten for testing charcoal. The modulus of elasticity and compressive strength were determined in compression test parallel to the fibers. There was a significant effect of sample length on stiffness and strength of wood and charcoal. The best results were found for samples of 25 mm x 25 mm x 75 mm. Only the dimension 25 mm x 25 mm x 50 mm proved inadequate, presenting lower results than those reported in literature.
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spelling Effect of the sample length in compressive strength of Eucalyptus wood and charcoalEfeito do comprimento do corpo de prova nas propriedades mecânicas do carvão de EucalyptusWoodStrengthCharcoal qualityMadeiraResistênciaQualidade do carvãoMechanical properties of charcoal are indicators of quality and they influence in steelmaking process. In general, assessment tests (falling and tumbling) present variable results compromising their reliability. So, it is important to develop methodologies that produce comparable results. This study aimed to analyze the influence of sample length to determine stiffness and strength of wood and charcoal. Samples were produced from Eucalyptus urophylla clones, presenting cross section 25 mm x 25 mm and lengths of 50 mm, 75 mm, 100 mm and 125 mm. Ten samples of each length were selected for testing wood, and another ten for testing charcoal. The modulus of elasticity and compressive strength were determined in compression test parallel to the fibers. There was a significant effect of sample length on stiffness and strength of wood and charcoal. The best results were found for samples of 25 mm x 25 mm x 75 mm. Only the dimension 25 mm x 25 mm x 50 mm proved inadequate, presenting lower results than those reported in literature.As propriedades mecânicas do carvão são indicadoras de qualidade e influenciam no processo siderúrgico. Os ensaios de avaliação (queda e tamboramento), em geral, apresentam resultados variáveis, comprometendo sua confiabilidade. Por isso, é importante desenvolver metodologias que produzam resultados comparáveis. Esse trabalho objetivou analisar a influência do comprimento do corpo de prova na determinação da rigidez e resistência da madeira e do carvão. Foram utilizados clones de Eucalyptus urophylla, dos quais foram produzidos corpos de prova de seção transversal de 25 mm x 25 mm e comprimentos de 50 mm, 75 mm, 100 mm e 125 mm. Dez amostras de cada comprimento foram selecionadas para a realização do ensaio com madeira, e outras dez para os ensaios com carvão. O módulo de elasticidade e a resistência à compressão foram determinados em ensaio de compressão paralela às fibras. Houve efeito significativo do comprimento do corpo de prova sobre a rigidez e resistência da madeira e do carvão, sendo que os melhores resultados foram encontrados para as dimensões 25 mm x 25 mm x 75 mm. Apenas a dimensão de 25 mm x 25 mm x 50 mm se mostrou inadequada, apresentando resultados inferiores aos relatados em literatura.Embrapa Florestas2016-12-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/107310.4336/2016.pfb.36.88.1073Pesquisa Florestal Brasileira; v. 36 n. 88 (2016): out./dez.; 399-403Pesquisa Florestal Brasileira; Vol. 36 No. 88 (2016): out./dez.; 399-4031983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1073/532Copyright (c) 2016 Taís Regina Lima Abreu Veiga, José Tarcísio Lima, Thiago Campos Monteiro, Maria Fernanda Vieira Rocha, Márcia Silva de Jesus, Selma Lopes Goularthttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessVeiga, Taís Regina Lima AbreuLima, José TarcísioMonteiro, Thiago CamposRocha, Maria Fernanda Vieirade Jesus, Márcia SilvaGoulart, Selma Lopes2017-04-28T14:13:33Zoai:pfb.cnpf.embrapa.br/pfb:article/1073Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2017-04-28T14:13:33Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effect of the sample length in compressive strength of Eucalyptus wood and charcoal
Efeito do comprimento do corpo de prova nas propriedades mecânicas do carvão de Eucalyptus
title Effect of the sample length in compressive strength of Eucalyptus wood and charcoal
spellingShingle Effect of the sample length in compressive strength of Eucalyptus wood and charcoal
Veiga, Taís Regina Lima Abreu
Wood
Strength
Charcoal quality
Madeira
Resistência
Qualidade do carvão
title_short Effect of the sample length in compressive strength of Eucalyptus wood and charcoal
title_full Effect of the sample length in compressive strength of Eucalyptus wood and charcoal
title_fullStr Effect of the sample length in compressive strength of Eucalyptus wood and charcoal
title_full_unstemmed Effect of the sample length in compressive strength of Eucalyptus wood and charcoal
title_sort Effect of the sample length in compressive strength of Eucalyptus wood and charcoal
author Veiga, Taís Regina Lima Abreu
author_facet Veiga, Taís Regina Lima Abreu
Lima, José Tarcísio
Monteiro, Thiago Campos
Rocha, Maria Fernanda Vieira
de Jesus, Márcia Silva
Goulart, Selma Lopes
author_role author
author2 Lima, José Tarcísio
Monteiro, Thiago Campos
Rocha, Maria Fernanda Vieira
de Jesus, Márcia Silva
Goulart, Selma Lopes
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Veiga, Taís Regina Lima Abreu
Lima, José Tarcísio
Monteiro, Thiago Campos
Rocha, Maria Fernanda Vieira
de Jesus, Márcia Silva
Goulart, Selma Lopes
dc.subject.por.fl_str_mv Wood
Strength
Charcoal quality
Madeira
Resistência
Qualidade do carvão
topic Wood
Strength
Charcoal quality
Madeira
Resistência
Qualidade do carvão
description Mechanical properties of charcoal are indicators of quality and they influence in steelmaking process. In general, assessment tests (falling and tumbling) present variable results compromising their reliability. So, it is important to develop methodologies that produce comparable results. This study aimed to analyze the influence of sample length to determine stiffness and strength of wood and charcoal. Samples were produced from Eucalyptus urophylla clones, presenting cross section 25 mm x 25 mm and lengths of 50 mm, 75 mm, 100 mm and 125 mm. Ten samples of each length were selected for testing wood, and another ten for testing charcoal. The modulus of elasticity and compressive strength were determined in compression test parallel to the fibers. There was a significant effect of sample length on stiffness and strength of wood and charcoal. The best results were found for samples of 25 mm x 25 mm x 75 mm. Only the dimension 25 mm x 25 mm x 50 mm proved inadequate, presenting lower results than those reported in literature.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1073
10.4336/2016.pfb.36.88.1073
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1073
identifier_str_mv 10.4336/2016.pfb.36.88.1073
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1073/532
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; v. 36 n. 88 (2016): out./dez.; 399-403
Pesquisa Florestal Brasileira; Vol. 36 No. 88 (2016): out./dez.; 399-403
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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