dc.creatorCarreira, Marcelo Rodrigo
dc.creatorAlcantara Segundinho, Pedro Gutemberg de
dc.creatorRocco Lahr, Francisco Antonio
dc.creatorDias, Antonio Alves
dc.creatorCalil Junior, Carlito
dc.date.accessioned2013-10-14T19:22:04Z
dc.date.accessioned2018-07-04T15:59:06Z
dc.date.available2013-10-14T19:22:04Z
dc.date.available2018-07-04T15:59:06Z
dc.date.created2013-10-14T19:22:04Z
dc.date.issued2012
dc.identifierACTA SCIENTIARUM-TECHNOLOGY, MARINGA, v. 34, n. 1, pp. 27-32, NOV, 2012
dc.identifier1806-2563
dc.identifierhttp://www.producao.usp.br/handle/BDPI/35082
dc.identifier10.4025/actascitechnol.v34i1.10728
dc.identifierhttp://dx.doi.org/10.4025/actascitechnol.v34i1.10728
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1630057
dc.description.abstractThe grading of structural lumber besides contributing for increasing the structure's safety, due to the reduction of the material variability, also allows its rational use. Due to the good correlation between strength and bending stiffness, the latter has been used in estimating the mechanical strength of lumber pieces since the 60's. For industrial application, there are equipment and techniques to evaluate the bending stiffness of lumber, through dynamic tests such as the longitudinal vibration technique, also known as stress wave, and the transverse vibration technique. This study investigated the application of these two techniques in the assessment of the modulus of elasticity in bending of Teca beams (Tectona grandis), from reforestation, and of the tropical species Guajara (Micropholis venulosa). The modulus of elasticity estimated by dynamic tests showed good correlation with the modulus measured in the static bending test. Meantime, we observed that the accuracy of the longitudinal vibration technique was significantly reduced in the evaluation of the bending stiffness of Teca pieces due to the knots existing in this species.
dc.languageeng
dc.publisherUNIV ESTADUAL MARINGA, PRO-REITORIA PESQUISA POS-GRADUACAO
dc.publisherMARINGA
dc.relationACTA SCIENTIARUM-TECHNOLOGY
dc.rightsCopyright UNIV ESTADUAL MARINGA, PRO-REITORIA PESQUISA POS-GRADUACAO
dc.rightsclosedAccess
dc.subjectLUMBER
dc.subjectNON-DESTRUCTIVE EVALUATION
dc.subjectDYNAMIC TESTS
dc.titleBending stiffness evaluation of Teca and Guajara lumber through tests of transverse and longitudinal vibration
dc.typeArtículos de revistas


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