WOOD UTILIZATION OF Eucalyptus grandis IN STRUCTURAL ELEMENTS: DENSITIES AND MECHANICAL PROPERTIES

ABSTRACT Over the years, the species of eucalyptus has become a multipurpose raw material. In addition, the most relevant aspect of the use for various purposes is related to the production of a high quality wood, coming from short duration plantations, which is fundamental to the current demand of...

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Main Authors: Francisco A. R. Lahr, Marta C. de J. A. Nogueira, Victor A. De Araujo, Juliano S. Vasconcelos, André L. Christoforo
Format: Article
Language:English
Published: Sociedade Brasileira de Engenharia Agrícola 2018-09-01
Series:Engenharia Agrícola
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500642&tlng=en
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author Francisco A. R. Lahr
Marta C. de J. A. Nogueira
Victor A. De Araujo
Juliano S. Vasconcelos
André L. Christoforo
author_facet Francisco A. R. Lahr
Marta C. de J. A. Nogueira
Victor A. De Araujo
Juliano S. Vasconcelos
André L. Christoforo
author_sort Francisco A. R. Lahr
collection DOAJ
description ABSTRACT Over the years, the species of eucalyptus has become a multipurpose raw material. In addition, the most relevant aspect of the use for various purposes is related to the production of a high quality wood, coming from short duration plantations, which is fundamental to the current demand of the industries. However, its use in civil construction has not yet reached a level of importance, due to the low knowledge of many of its resistance properties and the consequent popular fear in the use of reforestation woods, in particular the Eucalyptus grandis. This research investigated its main mechanical properties, aiming to reinforce its constructive applications in wood structures. For this, two physical properties and fourteen mechanical properties, in two different moisture conditions of the samples were evaluated, according to the norm NBR 7190 (1997). In the first moisture content, the samples were stabilized at 30%, while the second level considered the content of 12%. It was obtained 3580 determinations for the sixteen properties. From the 14 mechanical properties, only 7 had significant increases with the moisture reduction (30% to 12%), consisting of the rupture modulus in the parallel and normal compressions, normal traction and static bending; modulus of elasticity in normal compression and static bending and in shear strength.
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spelling doaj.art-03dbff681250491f8e91a8ac557700e92022-12-21T19:33:52ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162018-09-0138564264710.1590/1809-4430-eng.agric.v38n5p642-647/2018WOOD UTILIZATION OF Eucalyptus grandis IN STRUCTURAL ELEMENTS: DENSITIES AND MECHANICAL PROPERTIESFrancisco A. R. LahrMarta C. de J. A. NogueiraVictor A. De AraujoJuliano S. VasconcelosAndré L. ChristoforoABSTRACT Over the years, the species of eucalyptus has become a multipurpose raw material. In addition, the most relevant aspect of the use for various purposes is related to the production of a high quality wood, coming from short duration plantations, which is fundamental to the current demand of the industries. However, its use in civil construction has not yet reached a level of importance, due to the low knowledge of many of its resistance properties and the consequent popular fear in the use of reforestation woods, in particular the Eucalyptus grandis. This research investigated its main mechanical properties, aiming to reinforce its constructive applications in wood structures. For this, two physical properties and fourteen mechanical properties, in two different moisture conditions of the samples were evaluated, according to the norm NBR 7190 (1997). In the first moisture content, the samples were stabilized at 30%, while the second level considered the content of 12%. It was obtained 3580 determinations for the sixteen properties. From the 14 mechanical properties, only 7 had significant increases with the moisture reduction (30% to 12%), consisting of the rupture modulus in the parallel and normal compressions, normal traction and static bending; modulus of elasticity in normal compression and static bending and in shear strength.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500642&tlng=enRose Gumeucalyptmechanical propertiesbulk density
spellingShingle Francisco A. R. Lahr
Marta C. de J. A. Nogueira
Victor A. De Araujo
Juliano S. Vasconcelos
André L. Christoforo
WOOD UTILIZATION OF Eucalyptus grandis IN STRUCTURAL ELEMENTS: DENSITIES AND MECHANICAL PROPERTIES
Engenharia Agrícola
Rose Gum
eucalypt
mechanical properties
bulk density
title WOOD UTILIZATION OF Eucalyptus grandis IN STRUCTURAL ELEMENTS: DENSITIES AND MECHANICAL PROPERTIES
title_full WOOD UTILIZATION OF Eucalyptus grandis IN STRUCTURAL ELEMENTS: DENSITIES AND MECHANICAL PROPERTIES
title_fullStr WOOD UTILIZATION OF Eucalyptus grandis IN STRUCTURAL ELEMENTS: DENSITIES AND MECHANICAL PROPERTIES
title_full_unstemmed WOOD UTILIZATION OF Eucalyptus grandis IN STRUCTURAL ELEMENTS: DENSITIES AND MECHANICAL PROPERTIES
title_short WOOD UTILIZATION OF Eucalyptus grandis IN STRUCTURAL ELEMENTS: DENSITIES AND MECHANICAL PROPERTIES
title_sort wood utilization of eucalyptus grandis in structural elements densities and mechanical properties
topic Rose Gum
eucalypt
mechanical properties
bulk density
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500642&tlng=en
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