Volume 8, Issue 2, March 2019, Page: 21-24
Correlation of Bending Test Varying the Length Between Supports to Determine Longitudinal Modulus of Elasticity
Edson Fernando Castanheira Rodrigues, School of Civil Engineering, University of Uberaba, Uberaba, Brazil
André Luis Christoforo, Department of Civil Engineering, Federal University of São Carlos, São Carlos, Brazil
Received: May 14, 2019;       Accepted: Jun. 19, 2019;       Published: Jun. 29, 2019
DOI: 10.11648/j.ijmsa.20190802.11      View  175      Downloads  55
Abstract
The large amount of wood in Brazil related to the numerous uses of this material stimulates many studies to be carried out in order to use this raw material increasingly in a rational and adequate way. Compared with concrete and steel, wood presents an excellent relation between mechanical strength and its mass, beauty, low energy consumption for its processing, good thermal insulation and easy workability. In order to make the best use of wood, this work proposes to study the correlation between the values of the longitudinal modulus of elasticity (E) obtained in the 3-point bending test with a 14H and 21H (H = height of cross-sectional area) of specimen measurement between the supports. The data were analyzed through linear regression analysis, thus, three correlations were calculated between values from 14H of span length to the other 21H of span length in the test for a particular correlation of each hardwood species (Peroba Rosa and Eucalyptus Tereticornis) and the third one was generalized for the use in more hardwood species. Thus, the correlation of the longitudinal modulus of elasticity for the species of the hardwood group was possible for: Peroba Rosa (Aspidosperma polyneuron) with 35 specimens and Eucalyptus Tereticornis (Eucalyptus tereticornis) with 33 specimens.
Keywords
Linear Regression, Hardwood, Relation, Stiffness, Bending Test
To cite this article
Edson Fernando Castanheira Rodrigues, André Luis Christoforo, Correlation of Bending Test Varying the Length Between Supports to Determine Longitudinal Modulus of Elasticity, International Journal of Materials Science and Applications. Vol. 8, No. 2, 2019, pp. 21-24. doi: 10.11648/j.ijmsa.20190802.11
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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