PROPRIEDADES FÍSICAS E MECÂNICAS DE PAINÉIS LVL DE Eucalyptus grandis
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
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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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 |
|
_version_ |
1808128990175559680 |