ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUS

Due to the natural origin of wood, physical parameters such as specific gravity and the number of growth rings per inch affect its properties. In this study, to evaluate the effect that these physical parameters have on the elastic properties of wood, particularly on elastic modulus, a uniaxial comp...

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Autores principales:	Mascia,Nilson T, Cramer,Steven M
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2009
Materias:	Moisture content number of annual growth rings per inch specific gravity temperature wood elastic modulus
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2009000100004
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spelling	oai:scielo:S0718-221X20090001000042009-05-22ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUSMascia,Nilson TCramer,Steven M Moisture content number of annual growth rings per inch specific gravity temperature wood elastic modulus Due to the natural origin of wood, physical parameters such as specific gravity and the number of growth rings per inch affect its properties. In this study, to evaluate the effect that these physical parameters have on the elastic properties of wood, particularly on elastic modulus, a uniaxial compression test was performed on specimens. These specimens consisted of solid cubes of the Redwood species of wood with a width of 10.16 cm. Three different temperature conditions-ambient temperature (18° C), cold temperature (-28° C) and hot temperature (65° C)-were used to carry out the tests. Specific gravity ranged from 0.29 to 0.45, and the number of growth rings per inch varied from 2 to 24 rings per inch. The minimum moisture content in the specimens was 2%, and reached a maximum of 16% according to the temperature conditions. The results from the statistical analysis indicated that the effect that the number of growth rings per inch has on elastic modulus is more significant than the effects of specific gravity or even of temperature. As a consequence, we suggest that the number of growth rings per inch can be used as a predictor for wood elastic modulus.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.11 n.1 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2009000100004en10.4067/S0718-221X2009000100004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Moisture content number of annual growth rings per inch specific gravity temperature wood elastic modulus
spellingShingle	Moisture content number of annual growth rings per inch specific gravity temperature wood elastic modulus Mascia,Nilson T Cramer,Steven M ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUS
description	Due to the natural origin of wood, physical parameters such as specific gravity and the number of growth rings per inch affect its properties. In this study, to evaluate the effect that these physical parameters have on the elastic properties of wood, particularly on elastic modulus, a uniaxial compression test was performed on specimens. These specimens consisted of solid cubes of the Redwood species of wood with a width of 10.16 cm. Three different temperature conditions-ambient temperature (18° C), cold temperature (-28° C) and hot temperature (65° C)-were used to carry out the tests. Specific gravity ranged from 0.29 to 0.45, and the number of growth rings per inch varied from 2 to 24 rings per inch. The minimum moisture content in the specimens was 2%, and reached a maximum of 16% according to the temperature conditions. The results from the statistical analysis indicated that the effect that the number of growth rings per inch has on elastic modulus is more significant than the effects of specific gravity or even of temperature. As a consequence, we suggest that the number of growth rings per inch can be used as a predictor for wood elastic modulus.
author	Mascia,Nilson T Cramer,Steven M
author_facet	Mascia,Nilson T Cramer,Steven M
author_sort	Mascia,Nilson T
title	ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUS
title_short	ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUS
title_full	ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUS
title_fullStr	ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUS
title_full_unstemmed	ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUS
title_sort	on the effect of the number of annual growth rings, specific gravity and temperature on redwood elastic modulus
publisher	Universidad del Bío-Bío
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2009000100004
work_keys_str_mv	AT mascianilsont ontheeffectofthenumberofannualgrowthringsspecificgravityandtemperatureonredwoodelasticmodulus AT cramerstevenm ontheeffectofthenumberofannualgrowthringsspecificgravityandtemperatureonredwoodelasticmodulus
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ON THE EFFECT OF THE NUMBER OF ANNUAL GROWTH RINGS, SPECIFIC GRAVITY AND TEMPERATURE ON REDWOOD ELASTIC MODULUS

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