Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint

VEGA, ABEL - BAÑO, VANESA - CARDOSO, ANDREA - MOYA, LAURA

Resumen:

The aim of this study was to evaluate the structural performance of finger-joints made of Uruguayan Eucalyptus grandis and two types of adhesives. A numerical model for bending strength and stiffness prediction was developed. Model inputs were experimentally determined from tests on wooden specimens and from the literature. Finger-joints glued with two types of adhesives (one-component polyurethane -PUR- and emulsion polymer isocyanate-EPI-) were tested in bending and the failure modes were evaluated. Results show that adhesive type did not influence the stiffness of the finger-joint, but the bending strength. Specimens glued with PUR showed higher strength than those glued with EPI. A 3D model, using Comsol Multiphisic software, was developed to simulate the finger-joint behavior. Adhesive-wood interaction in the finger-joints was modelled using the Comsol Thin Elastic Layer module, defined by the elastic properties of the adhesives. The numerical results showed no differences on the stiffness of the joints regardless of adhesive type. Results agreed with those obtained from experimental tests, with a maximum error of 7%. Models predicted the bending strength with an error of 6% with respect to the experimental values. Different finger configurations were analysed, and the optimal geometry (20 mm-length, 6.2 mm-pitch and 1.0 mm-tip-thick) to attain the maximum strength for Uruguayan Eucalyptus was found.


Detalles Bibliográficos
2020
EUCALYPTUS
PRODUCTOS DE MADERA
TABLEROS DE MADERA
Inglés
Laboratorio Tecnológico del Uruguay
Catálogo digital del LATU
https://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=32427
Acceso abierto
CC BY
_version_ 1807353831814594560
author VEGA, ABEL
author2 BAÑO, VANESA
CARDOSO, ANDREA
MOYA, LAURA
author2_role author
author
author
author_facet VEGA, ABEL
BAÑO, VANESA
CARDOSO, ANDREA
MOYA, LAURA
author_role author
collection Catálogo digital del LATU
dc.coverage.none.fl_str_mv En: European Journal of Wood and Wood Products, 78, pp.923–932. DOI: https://doi.org/10.1007/s00107-020-01570-5
dc.creator.none.fl_str_mv VEGA, ABEL
BAÑO, VANESA
CARDOSO, ANDREA
MOYA, LAURA
dc.date.none.fl_str_mv 2020-01-01
dc.description.abstract.none.fl_txt_mv The aim of this study was to evaluate the structural performance of finger-joints made of Uruguayan Eucalyptus grandis and two types of adhesives. A numerical model for bending strength and stiffness prediction was developed. Model inputs were experimentally determined from tests on wooden specimens and from the literature. Finger-joints glued with two types of adhesives (one-component polyurethane -PUR- and emulsion polymer isocyanate-EPI-) were tested in bending and the failure modes were evaluated. Results show that adhesive type did not influence the stiffness of the finger-joint, but the bending strength. Specimens glued with PUR showed higher strength than those glued with EPI. A 3D model, using Comsol Multiphisic software, was developed to simulate the finger-joint behavior. Adhesive-wood interaction in the finger-joints was modelled using the Comsol Thin Elastic Layer module, defined by the elastic properties of the adhesives. The numerical results showed no differences on the stiffness of the joints regardless of adhesive type. Results agreed with those obtained from experimental tests, with a maximum error of 7%. Models predicted the bending strength with an error of 6% with respect to the experimental values. Different finger configurations were analysed, and the optimal geometry (20 mm-length, 6.2 mm-pitch and 1.0 mm-tip-thick) to attain the maximum strength for Uruguayan Eucalyptus was found.
dc.format.none.fl_str_mv Pdf
dc.identifier.none.fl_str_mv https://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=32427
32427
urn:ISBN:69398
dc.language.iso.none.fl_str_mv eng
dc.publisher.none.fl_str_mv Laboratorio Tecnológico del Uruguay (LATU) (Montevideo)
dc.rights.license.none.fl_str_mv CC BY
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
CC BY
dc.source.none.fl_str_mv reponame:Catálogo digital del LATU
instname:Laboratorio Tecnológico del Uruguay
instacron:Laboratorio Tecnológico del Uruguay
dc.subject.none.fl_str_mv EUCALYPTUS
PRODUCTOS DE MADERA
TABLEROS DE MADERA
dc.title.none.fl_str_mv Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint
dc.type.none.fl_str_mv info:eu-repo/semantics/article
Publicado
dc.type.version.none.fl_str_mv info:eu-repo/semantics/publishedVersion
description The aim of this study was to evaluate the structural performance of finger-joints made of Uruguayan Eucalyptus grandis and two types of adhesives. A numerical model for bending strength and stiffness prediction was developed. Model inputs were experimentally determined from tests on wooden specimens and from the literature. Finger-joints glued with two types of adhesives (one-component polyurethane -PUR- and emulsion polymer isocyanate-EPI-) were tested in bending and the failure modes were evaluated. Results show that adhesive type did not influence the stiffness of the finger-joint, but the bending strength. Specimens glued with PUR showed higher strength than those glued with EPI. A 3D model, using Comsol Multiphisic software, was developed to simulate the finger-joint behavior. Adhesive-wood interaction in the finger-joints was modelled using the Comsol Thin Elastic Layer module, defined by the elastic properties of the adhesives. The numerical results showed no differences on the stiffness of the joints regardless of adhesive type. Results agreed with those obtained from experimental tests, with a maximum error of 7%. Models predicted the bending strength with an error of 6% with respect to the experimental values. Different finger configurations were analysed, and the optimal geometry (20 mm-length, 6.2 mm-pitch and 1.0 mm-tip-thick) to attain the maximum strength for Uruguayan Eucalyptus was found.
eu_rights_str_mv openAccess
format article
id LATU_69ce9627f64c915346170ff1aa8fd22f
identifier_str_mv 32427
urn:ISBN:69398
instacron_str Laboratorio Tecnológico del Uruguay
institution Laboratorio Tecnológico del Uruguay
instname_str Laboratorio Tecnológico del Uruguay
language eng
network_acronym_str LATU
network_name_str Catálogo digital del LATU
oai_identifier_str oai:PMBOAI:32427
publishDate 2020
publisher.none.fl_str_mv Laboratorio Tecnológico del Uruguay (LATU) (Montevideo)
reponame_str Catálogo digital del LATU
repository.mail.fl_str_mv lfiori@latu.org.uy
repository.name.fl_str_mv Catálogo digital del LATU - Laboratorio Tecnológico del Uruguay
repository_id_str
rights_invalid_str_mv CC BY
CC BY
spelling Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-jointVEGA, ABELBAÑO, VANESACARDOSO, ANDREAMOYA, LAURAEUCALYPTUSPRODUCTOS DE MADERATABLEROS DE MADERAThe aim of this study was to evaluate the structural performance of finger-joints made of Uruguayan Eucalyptus grandis and two types of adhesives. A numerical model for bending strength and stiffness prediction was developed. Model inputs were experimentally determined from tests on wooden specimens and from the literature. Finger-joints glued with two types of adhesives (one-component polyurethane -PUR- and emulsion polymer isocyanate-EPI-) were tested in bending and the failure modes were evaluated. Results show that adhesive type did not influence the stiffness of the finger-joint, but the bending strength. Specimens glued with PUR showed higher strength than those glued with EPI. A 3D model, using Comsol Multiphisic software, was developed to simulate the finger-joint behavior. Adhesive-wood interaction in the finger-joints was modelled using the Comsol Thin Elastic Layer module, defined by the elastic properties of the adhesives. The numerical results showed no differences on the stiffness of the joints regardless of adhesive type. Results agreed with those obtained from experimental tests, with a maximum error of 7%. Models predicted the bending strength with an error of 6% with respect to the experimental values. Different finger configurations were analysed, and the optimal geometry (20 mm-length, 6.2 mm-pitch and 1.0 mm-tip-thick) to attain the maximum strength for Uruguayan Eucalyptus was found. Laboratorio Tecnológico del Uruguay (LATU) (Montevideo)2020-01-01info:eu-repo/semantics/articlePublicadoinfo:eu-repo/semantics/publishedVersionPdfhttps://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=3242732427urn:ISBN:69398engEn: European Journal of Wood and Wood Products, 78, pp.923–932. DOI: https://doi.org/10.1007/s00107-020-01570-5info:eu-repo/semantics/openAccessCC BYCC BYreponame:Catálogo digital del LATUinstname:Laboratorio Tecnológico del Uruguayinstacron:Laboratorio Tecnológico del Uruguay2021-06-23T20:02:13Zoai:PMBOAI:32427Gobiernohttps://latu.org.uy/https://catalogo.latu.org.uy/ws/PMBOAIlfiori@latu.org.uyUruguayopendoar:2024-08-01T14:48:59.189325Catálogo digital del LATU - Laboratorio Tecnológico del Uruguayfalse
spellingShingle Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint
VEGA, ABEL
EUCALYPTUS
PRODUCTOS DE MADERA
TABLEROS DE MADERA
status_str publishedVersion
title Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint
title_full Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint
title_fullStr Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint
title_full_unstemmed Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint
title_short Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint
title_sort Experimental and numerical evaluation of the structural performance of Uruguayan Eucalyptus grandis finger-joint
topic EUCALYPTUS
PRODUCTOS DE MADERA
TABLEROS DE MADERA
url https://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=32427