Strength grading of northern hardwood species for structural engineered wood products : identification of the relevant indicating properties

DC FieldValueLanguage
dc.contributor.authorMorin-Bernard, Alexandre-
dc.contributor.authorBlanchet, Pierre-
dc.contributor.authorDagenais, Christian-
dc.contributor.authorAchim, Alexis-
dc.description.abstractStrength grading of hardwoods is a prerequisite to use them in structural engineered wood products. However, hardwood strength grading is considerably less developed than it is for softwood species. Previous study has shown that white ash and yellow birch are promising species for the manufacture of glued-laminated timber. However, no strength grading procedure dedicated to hardwoods is available in Canada. The objective of this study was to identify the relevant indicating properties for predicting the ultimate tensile strength of the investigated species. A model selection approach allowed to identify the most performing models and to compare, for each species, the relative impact of the indicating properties. The indicating properties included in the final models were the density of the specimens, the dynamic modulus of elasticity, the sinus of the maximum local grain deviation (SGDmax) as well as the knot area index (KAI), derived from the knot area ratio. The final models revealed important differences between the two species, indicating that it may be relevant to grade them separately to ensure the most efficient utilization of the resource. The coefficients of determination between the actual and model predicted UTS were 0.82 for white ash and 0.78 for yellow
dc.publisherDept. of Wood and Paper Science, College of Natural Resources, North Carolina State Universityfr
dc.subjectEngineered wood productsfr
dc.subjectGlued-laminated timberfr
dc.subjectHardwoods strength gradingfr
dc.subjectCharacteristic propertiesfr
dc.subjectNorthern hardwood speciesfr
dc.subjectUltimate tensile strengthfr
dc.subjectDynamic modulus of elasticfr
dc.titleStrength grading of northern hardwood species for structural engineered wood products : identification of the relevant indicating propertiesfr
dc.typeCOAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherchefr
dcterms.bibliographicCitationBioResources, Vol. 15 (4), 8813-8832 (2020)fr
dc.subject.rvmBois d'ingénierie -- Propriétés mécaniquesfr
dc.subject.rvmBois lamellé collé -- Propriétés mécaniquesfr
dc.subject.rvmRésistance à la tractionfr
dc.subject.rvmBois durs -- Propriétés mécaniquesfr
dc.subject.rvmFrêne d'Amériquefr
dc.subject.rvmBouleau jaunefr
dc.subject.rvmClassement (Commerce)fr
rioxxterms.versionVersion of Recordfr
rioxxterms.project.funder_nameNatural Sciences and Engineering Research Council of Canadafr
rioxxterms.project.funder_nameFonds de Recherche du Québec - Nature et Technologiesfr
Collection:Articles publiés dans des revues avec comité de lecture

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