Poisson’s Ratios for Wood Species for Structural Purposes

Francisco Antonio Rocco Lahr; André Luis Christoforo; Eduardo Chahud; Luiz A. Melgaço N. Branco; Rosane A.G. Battistelle; Ivaldo D. Valarelli

doi:10.4028/www.scientific.net/AMR.1088.690

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1088Poisson’s Ratios for Wood Species for Structural...

Poisson’s Ratios for Wood Species for Structural Purposes

Abstract:

The broader knowledge about physical and mechanical properties of wood allows reliable timber structures design. Even little addressed in the literature, in several situations Poisson's ratios are required for the evaluation of stresses acting on structural elements. This study aimed to obtain values of Poisson's ratios (ν), plans Longitudinal-Radial (ν_LR) and Longitudinal-Tangential (ν_LT), for species Peroba Rosa (Aspidosperma polyneuron) and Jatobá (Hymenaea courbaril L.). For this purpose, forty samples Peroba Rosa and eight samples of Jatobá were prepared for testing in compression parallel to the grain, following the recommendations of ABNT NBR 7190 standard. The results of means confidence intervals, considered at the level of 5% significance, revealed that the Poisson's ratios ν_LR e ν_LT to Peroba Rosa are 0.27 and 0.42, respectively, and 0.25 and 0.43 to Jatobá.

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Periodical:

Advanced Materials Research (Volume 1088)

Pages:

690-693

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1088.690

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Online since:

February 2015

Authors:

Francisco Antonio Rocco Lahr*, André Luis Christoforo, Eduardo Chahud, Luiz A. Melgaço N. Branco, Rosane A.G. Battistelle, Ivaldo D. Valarelli

Keywords:

Anisotropy, Parallel Compression, Poisson's Ratio

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