Visual strength grading of Argentinean Eucalyptus grandis

The present paper reports the results of an investigation regarding the design of a method for visually grading sawn timber of Argentinean Eucalyptus grandis. An empirical research project with four samples of beams and one sample of boards subjected to bending, one sample of boards subjected to ten...

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Bibliographic Details
Published in:European journal of wood and wood products 2004-03, Vol.62 (1), p.1-8
Main Authors: Zerbino, R. L., Piter, J. C., Bla, H. J.
Format: Article
Language:English
Subjects:
Compression
Density
Empirical analysis
Eucalyptus
Eucalyptus grandis
Modulus of elasticity
Research projects
Stiffness
Strength
Timber (structural)
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Summary:The present paper reports the results of an investigation regarding the design of a method for visually grading sawn timber of Argentinean Eucalyptus grandis. An empirical research project with four samples of beams and one sample of boards subjected to bending, one sample of boards subjected to tension and one sample of specimens subjected to compression, was carried out. The results obtained with specimens in structural sizes show the influence of the more important strength and stiffness reducing growth characteristics and allow to analyse different strength, stiffness and density profiles in comparison with the international strength class system established in the European standard EN 338. The research also reveals particularities for this timber species as the high ratio of modulus of elasticity and strength to density, in comparison with other deciduous species, among others.
ISSN:0018-3768
1436-736X
DOI:10.1007/s00107-003-0433-2