Acoustic and bending properties in Pinus elliottii beams obtained from trees of different ages

dc.creatorGoncalves, R
dc.creatorPedroso, CB
dc.creatorMassak, MV
dc.date2013
dc.dateAPR
dc.date2014-07-30T13:43:26Z
dc.date2015-11-26T17:49:59Z
dc.date2014-07-30T13:43:26Z
dc.date2015-11-26T17:49:59Z
dc.date.accessioned2018-03-29T00:33:07Z
dc.date.available2018-03-29T00:33:07Z
dc.identifierJournal Of Wood Science. Springer Japan Kk, v. 59, n. 2, n. 127, n. 132, 2013.
dc.identifier1435-0211
dc.identifierWOS:000317305900005
dc.identifier10.1007/s10086-012-1311-5
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/54121
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/54121
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1289542
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionIn contrast to wood from native forests, the lumber harvested from planted forests is primarily composed of boards from younger trees. Given the possibility of using wave propagation methods to classify wood for structural purposes, it is important to evaluate if the ultrasonic parameters tend to vary with the age of the tree in a similar manner as static bending parameters. Experiments were conducted using structural beams taken from Pinus elliottii trees that were 8, 9, 13, 15, 22 and 23 years old. The beams were tested by ultrasound in the longitudinal direction and by static bending. The results showed that age of the tree influences the wave propagation velocity, stiffness constant and modulus of elasticity. The results were sorted into two groups based on the variation of these parameters: wood pieces from trees up to 15 years old and wood pieces from trees older than 15 years of age. Statistically, the flexural strength did not change with age due to the significant influence of knots on this parameter, which overcomes the influence of age. The data obtained by ultrasound follow the same trends with age as the elastic modulus in static bending.
dc.description59
dc.description2
dc.description127
dc.description132
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherSpringer Japan Kk
dc.publisherTokyo
dc.publisherJapão
dc.relationJournal Of Wood Science
dc.relationJ. Wood Sci.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectWave propagation velocity
dc.subjectUltrasound
dc.subjectStiffness coefficient
dc.subjectLongitudinal modulus of elasticity
dc.subjectFlexural strength
dc.subjectWood
dc.titleAcoustic and bending properties in Pinus elliottii beams obtained from trees of different ages
dc.typeArtículos de revistas


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