dc.creatorGoncalves, R
dc.creatorTrinca, AJ
dc.creatorCerri, DGP
dc.date2011
dc.dateJAN
dc.date2014-07-30T14:00:10Z
dc.date2015-11-26T16:32:53Z
dc.date2014-07-30T14:00:10Z
dc.date2015-11-26T16:32:53Z
dc.date.accessioned2018-03-28T23:14:30Z
dc.date.available2018-03-28T23:14:30Z
dc.identifierWood And Fiber Science. Soc Wood Sci Technol, v. 43, n. 1, n. 64, n. 75, 2011.
dc.identifier0735-6161
dc.identifierWOS:000286860500007
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56240
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56240
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1270677
dc.descriptionIn Brazil, most reports on the elastic properties of wood include only the elastic modulus in the longitudinal direction. This is because of the difficulty in determining other properties through static testing. The purpose of this study was to evaluate the methodology for determining the three Young's moduli (E(L), E(R), E(T)), the three shear moduli (G(LR), G(LT), G(RT)). and the six Poisson ratios (nu(LR), nu(LT), nu(RL) nu(RT), nu(TL), nu(TR)) using ultrasonic technology. For testing, we used specimens in the form of cubic prisms from the following species: Garapeira (Apuleia leiocarpa), Cupiuba (Goupia glabra), and Sydney Bluegum (Eucalyptus saligna). The ultrasonic tests were performed with plane transducers of longitudinal and transverse waves, both with a 1-MHz frequency. For comparison, the same specimens were tested by static compression. Based on the confidence intervals of the means, the results of the ultrasonic test produced values of longitudinal elasticity moduli (E(L), E(R), and E(T)) and shear moduli (G(TR), G(TL), and G(LR)) statistically equivalent to those obtained with static compression. In the case of the Poisson ratio, the results, using the confidence intervals, indicated that nu(RL), nu(LR), and nu(LT) were not statistically equivalent to those obtained in static tests for any of the species. Conversely, nu(TL), nu(TR), and nu(RT) were statistically equivalent to those obtained in static tests for all the species. In conclusion, the ultrasonic test for determining the Young's and shear moduli of wood was found to be simpler and less expensive than the static compression test, and the results are equally useful.
dc.description43
dc.description1
dc.description64
dc.description75
dc.languageen
dc.publisherSoc Wood Sci Technol
dc.publisherMadison
dc.publisherEUA
dc.relationWood And Fiber Science
dc.relationWood Fiber Sci.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectYoung's modulus
dc.subjectshear modulus
dc.subjectPoisson ratios
dc.titleCOMPARISON OF ELASTIC CONSTANTS OF WOOD DETERMINED BY ULTRASONIC WAVE PROPAGATION AND STATIC COMPRESSION TESTING
dc.typeArtículos de revistas


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