Influence of Moisture Content in some Mechanical Properties of Two Brazilian Tropical Wood Species

Article Preview

Abstract:

This study aimed, with the aid of analysis of variance (ANOVA), to investigate and quantify the influence of moisture ranging between 12% and over 30% (fiber saturation) on the mechanical properties: strength and modulus of elasticity in compression and in tension parallel to grain; modulus of rupture and modulus of elasticity in static bending; shear strength parallel to grain considering wood species Ipê (Tabebuia sp) and Angelim Araroba (Vataireopsis araroba). Tests were performed according to the assumptions and calculating methods Brazilian standard ABNT NBR 7190, Anexx B, totalizing 400 tests. Results of ANOVA revealed a significant reduction (16% on average) for mechanical properties wood due to the increase in moisture content from 12% to over 30% (fiber saturation). The same behavior also occurred when assembly containing the two species was considered.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 1025-1026)

Pages:

42-45

Citation:

Online since:

September 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] D.A.L. Silva, F.A. Rocco Lahr, O.B. Faria and E. Chahud: Mater. Res. Vol. 15, No. 2 (2012), p.300.

Google Scholar

[2] O.B. Faria, F.A. Rocco Lahr, O. Barros Júnior and E. Chahud: Madeira: Arch. Eng. Vol. 23, No 2 (2008), p.57.

Google Scholar

[3] O.B. Faria, D.A. L Silva, F.A. Rocco Lahr, E. Chahud, L. D Varanda: European Int. J. Sci. Technol. Vol. 1, No. 2 (2012), p.11.

Google Scholar

[4] Brazilian Association of Technical Standards (ABNT). NBR 7190. Design of Timber Structures. ABNT Press, (1997).

Google Scholar

[5] A.L. Christoforo, T.H. Panzera, J. Fiorelli, A.L. Zangiácomo, F.A.L. Rocco: Sci. Tech. Mater. Vol. 25, No. 1 (2013), p.9.

Google Scholar

[6] A.L. Christoforo, T.H. Panzera, F.B. Batista, P.H. Borges, F.A.L. Rocco: Eng. Agric. Jaboticabal Vol. 31, No. 5 (2011), p.1007.

Google Scholar

[7] A.L. Christoforo, S.L.M. Ribeiro Filho, T.H. Panzera, F.A.L. Rocco: Rural Sci. (UFSM. Impresso) Vol. 43, No. 4 (2013), p.610.

Google Scholar