Resonance of scantlings indicates the stiffness even of small specimens of Eucalyptus from plantations

Gherardi Hein Paulo Ricardo, Tarcisio Lima Jose, Gril Joseph, Rosado Antônio Marcos, Brancheriau Loïc. 2012. Resonance of scantlings indicates the stiffness even of small specimens of Eucalyptus from plantations. Wood Science and Technology, 46 (4) : 621-635.

Quartile : Q1, Sujet : MATERIALS SCIENCE, PAPER & WOOD / Quartile : Q1, Sujet : FORESTRY

Résumé : The aim of this study was to establish the relationship between the stiffness of scantlings, approaching structural size materials, and small specimens of 6-year-old Eucalyptus urophylla × grandis wood using a resonance technique. The correlation between the elastic modulus (E) of the scantlings in longitudinal vibration and small specimens in flexural vibration was r = 75 when comparing the scantling values with the averaged values of the specimens per scantling. However, when the E of each single specimen was compared with its respective scantling, the coefficient of correlation decreased to r = 0.64 in the longitudinal tests and r = 0.61 in the flexural tests. A roughly linear correlation (r = 0.59) between specific modulus and loss tangent was obtained for the small specimens of Eucalyptus. In short, the resonance technique rapidly provided a large, accurate data set of mechanical wood properties as required for high-throughput phenotyping in recent genetic studies.

Mots-clés Agrovoc : Eucalyptus, tige, anatomie végétale, Eucalyptus grandis, Eucalyptus urophylla, Pinus, bois, propriété technologique, propriété acoustique, propriété mécanique, propriété physicochimique, Élasticité, vibration

Mots-clés géographiques Agrovoc : Brésil

Mots-clés complémentaires : Dicorynia

Classification Agris : K50 - Technologie des produits forestiers
F50 - Anatomie et morphologie des plantes

Champ stratégique Cirad : Hors axes (2005-2013)

Auteurs et affiliations

• Gherardi Hein Paulo Ricardo
• Tarcisio Lima Jose, UFLA (BRA)
• Gril Joseph, UM2 (FRA)
• Rosado Antônio Marcos, Celulose Nipo-Brasileira (BRA)
• Brancheriau Loïc, CIRAD-PERSYST-UPR Bois tropicaux (FRA) ORCID: 0000-0002-9580-7696

Source : Cirad - Agritrop (https://agritrop.cirad.fr/564469/)

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