PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis

Detalhes bibliográficos
Autor(a) principal: Palma, Hernando Alfonso Lara [UNESP]
Data de Publicação: 2011
Outros Autores: Ballarin, Adriano Wagner [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.5902/198050983813
http://hdl.handle.net/11449/213250
Resumo: This paper mainly aimed to evaluate the physical and mechanical properties of LVL panels made from Eucalyptus grandis, from reforestation at the region of Sengés, in Paraná state, Brazil. LVL panels were manufactured using 23 veneers (2,4mm thick each one) in commercial dimension of 2.500 mm long and 1,200 mm wide. The properties of static bending were analyzed (strength and rigidity) in beams of the LVL, in the flatwise and edgewise positions. The properties of compression parallel to grain and shear parallel in the plans L-X and L-Y and density in this LVL panels were also analyzed according to ASTM-D 5456/4761 and ASTM-D 198 codes. The mean values to flatwise bending MOE and MOR were 13114 MPa and 88.76 MPa, respectively, and for edgewise bending MOE and MOR were 15871 MPa and 88.63 MPa, respectively. The density (12%) of the LVL panels and of the veneers were 690 kg/m3 and 649 kg/m3. The mean values to parallel compression MOE and MOR were 16856 MPa and 58.05 MPa, respectively. The mean values of the maximum resistance to shear parallel in the plans L-X and L-Y were 5.96 MPa and 591 MPa, respectively. All these values reached partially or they passed the medium limits of reference (normative codes, researches and commercial catalogs) established for LVL panels and original solid wood, attesting overall the quality of those panels produced with this wood.
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spelling PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandisPHYSICAL AND MECHANICAL PROPERTIES OF LVL PANELS MADE FROM Eucalyptus grandisLVL panelsEucalyptus grandisstatic bendingcompression parallelpainéis LVLEucalyptus grandisflexão estáticacompressão paralelaThis paper mainly aimed to evaluate the physical and mechanical properties of LVL panels made from Eucalyptus grandis, from reforestation at the region of Sengés, in Paraná state, Brazil. LVL panels were manufactured using 23 veneers (2,4mm thick each one) in commercial dimension of 2.500 mm long and 1,200 mm wide. The properties of static bending were analyzed (strength and rigidity) in beams of the LVL, in the flatwise and edgewise positions. The properties of compression parallel to grain and shear parallel in the plans L-X and L-Y and density in this LVL panels were also analyzed according to ASTM-D 5456/4761 and ASTM-D 198 codes. The mean values to flatwise bending MOE and MOR were 13114 MPa and 88.76 MPa, respectively, and for edgewise bending MOE and MOR were 15871 MPa and 88.63 MPa, respectively. The density (12%) of the LVL panels and of the veneers were 690 kg/m3 and 649 kg/m3. The mean values to parallel compression MOE and MOR were 16856 MPa and 58.05 MPa, respectively. The mean values of the maximum resistance to shear parallel in the plans L-X and L-Y were 5.96 MPa and 591 MPa, respectively. All these values reached partially or they passed the medium limits of reference (normative codes, researches and commercial catalogs) established for LVL panels and original solid wood, attesting overall the quality of those panels produced with this wood.O presente trabalho teve como objetivo principal avaliar as propriedades físicas e mecânicas de painéis LVL (Laminated veneer lumber) confeccionados com lâminas de Eucalyptus grandis, provenientes de reflorestamentos da região de Sengés, Paraná - Brasil. Foram confeccionados painéis LVL de 23 lâminas, de dimensões comerciais de 2500 mm de comprimento, 1200 mm de largura e espessura nominal de 50 mm (lâminas de 2,4 mm). Em vigas retiradas dos painéis LVL foram analisadas as propriedades de flexão estática (rigidez e resistência), nas condições de menor inércia (flatwise) e de maior inércia (edgewise), compressão paralela, cisalhamento paralelo nos planos L-X e L-Y e densidade, atendendo às prescrições das normas ASTM-D 5456/4761 e ASTM-D 198/143. Os valores médios obtidos para o módulo de elasticidade e resistência à flexão estática foram, respectivamente, 13114 MPa e 88,76 MPa para o ensaio na condição de menor inércia e de, respectivamente, 15871 MPa e 88,63 MPa para o ensaio na condição de maior inércia. A densidade aparente (a 12% de umidade) dos painéis LVL e das lâminas foram, respectivamente, 690 kg/ m3 e 649 kg/m3. Os valores médios obtidos nos ensaios de compressão paralela foram 16856 MPa para o módulo de elasticidade e 58,05 MPa para a resistência. Os valores médios da resistência no ensaio de cisalhamento paralelo no plano L-Y e no plano L-X foram 5,96 MPa e 5,91 MPa, respectivamente. Todos esses valores atingiram parcialmente ou ultrapassaram os limites médios de referência estabelecidos para painéis LVL e para a madeira sólida originária, atestando, sobretudo, a qualidade dos painéis produzidos com essa madeira.Universidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Federal de Santa MariaUniversidade Estadual Paulista (Unesp)Palma, Hernando Alfonso Lara [UNESP]Ballarin, Adriano Wagner [UNESP]2021-07-14T10:52:18Z2021-07-14T10:52:18Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article559-566application/pdfhttp://dx.doi.org/10.5902/198050983813Ciência Florestal. Universidade Federal de Santa Maria, v. 21, n. 3, p. 559-566, 2011.0103-99541980-5098http://hdl.handle.net/11449/21325010.5902/198050983813S1980-50982011000300559S1980-50982011000300559.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporCiência Florestalinfo:eu-repo/semantics/openAccess2024-04-30T14:01:19Zoai:repositorio.unesp.br:11449/213250Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:50:48.678671Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
PHYSICAL AND MECHANICAL PROPERTIES OF LVL PANELS MADE FROM Eucalyptus grandis
title PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
spellingShingle PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
Palma, Hernando Alfonso Lara [UNESP]
LVL panels
Eucalyptus grandis
static bending
compression parallel
painéis LVL
Eucalyptus grandis
flexão estática
compressão paralela
title_short PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
title_full PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
title_fullStr PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
title_full_unstemmed PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
title_sort PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
author Palma, Hernando Alfonso Lara [UNESP]
author_facet Palma, Hernando Alfonso Lara [UNESP]
Ballarin, Adriano Wagner [UNESP]
author_role author
author2 Ballarin, Adriano Wagner [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Palma, Hernando Alfonso Lara [UNESP]
Ballarin, Adriano Wagner [UNESP]
dc.subject.por.fl_str_mv LVL panels
Eucalyptus grandis
static bending
compression parallel
painéis LVL
Eucalyptus grandis
flexão estática
compressão paralela
topic LVL panels
Eucalyptus grandis
static bending
compression parallel
painéis LVL
Eucalyptus grandis
flexão estática
compressão paralela
description This paper mainly aimed to evaluate the physical and mechanical properties of LVL panels made from Eucalyptus grandis, from reforestation at the region of Sengés, in Paraná state, Brazil. LVL panels were manufactured using 23 veneers (2,4mm thick each one) in commercial dimension of 2.500 mm long and 1,200 mm wide. The properties of static bending were analyzed (strength and rigidity) in beams of the LVL, in the flatwise and edgewise positions. The properties of compression parallel to grain and shear parallel in the plans L-X and L-Y and density in this LVL panels were also analyzed according to ASTM-D 5456/4761 and ASTM-D 198 codes. The mean values to flatwise bending MOE and MOR were 13114 MPa and 88.76 MPa, respectively, and for edgewise bending MOE and MOR were 15871 MPa and 88.63 MPa, respectively. The density (12%) of the LVL panels and of the veneers were 690 kg/m3 and 649 kg/m3. The mean values to parallel compression MOE and MOR were 16856 MPa and 58.05 MPa, respectively. The mean values of the maximum resistance to shear parallel in the plans L-X and L-Y were 5.96 MPa and 591 MPa, respectively. All these values reached partially or they passed the medium limits of reference (normative codes, researches and commercial catalogs) established for LVL panels and original solid wood, attesting overall the quality of those panels produced with this wood.
publishDate 2011
dc.date.none.fl_str_mv 2011
2021-07-14T10:52:18Z
2021-07-14T10:52:18Z
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 http://dx.doi.org/10.5902/198050983813
Ciência Florestal. Universidade Federal de Santa Maria, v. 21, n. 3, p. 559-566, 2011.
0103-9954
1980-5098
http://hdl.handle.net/11449/213250
10.5902/198050983813
S1980-50982011000300559
S1980-50982011000300559.pdf
url http://dx.doi.org/10.5902/198050983813
http://hdl.handle.net/11449/213250
identifier_str_mv Ciência Florestal. Universidade Federal de Santa Maria, v. 21, n. 3, p. 559-566, 2011.
0103-9954
1980-5098
10.5902/198050983813
S1980-50982011000300559
S1980-50982011000300559.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Ciência Florestal
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 559-566
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv SciELO
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
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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