Relationships and estimates of longitudinal growth stress in Eucalyptus dunnii at different ages
The objective of this study was to obtain estimates of longitudinal growth stresses in standing trees of the Eucalyptus dunnii Maiden at eight, thirteen, fifteen and nineteen years of age and to determine their relationships with wood characteristics. The longitudinal growth stresses were indirectly measured by the "CIRAD-Forêt" method and estimated from both the dynamic modulus of elasticity and the modulus of elasticity in tension parallel to the grain. The longitudinal residual strain (LRS) and the estimates of the longitudinal growth stresses tended to increase with the age of the material. The LRS correlated positively and significantly with all the growth stresses estimates. The largestes magnitudes were at 13, 15 and 19 years of age. The basic density presented high, positive and significant correlations with the dynamic modulus of elasticity, estimated in the longitudinal direction, for wood saturated and at 12% moisture content, for all the ages assessed. All the growth stresses estimates presented high, positive and significant correlations between themselves.
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Sociedade de Investigações Florestais
2008
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oai:scielo:S0100-676220080004000142008-10-30Relationships and estimates of longitudinal growth stress in Eucalyptus dunnii at different agesTrugilho,Paulo FernandoOliveira,José Tarcísio da Silva Growth stress longitudinal residual strain standing tree The objective of this study was to obtain estimates of longitudinal growth stresses in standing trees of the Eucalyptus dunnii Maiden at eight, thirteen, fifteen and nineteen years of age and to determine their relationships with wood characteristics. The longitudinal growth stresses were indirectly measured by the "CIRAD-Forêt" method and estimated from both the dynamic modulus of elasticity and the modulus of elasticity in tension parallel to the grain. The longitudinal residual strain (LRS) and the estimates of the longitudinal growth stresses tended to increase with the age of the material. The LRS correlated positively and significantly with all the growth stresses estimates. The largestes magnitudes were at 13, 15 and 19 years of age. The basic density presented high, positive and significant correlations with the dynamic modulus of elasticity, estimated in the longitudinal direction, for wood saturated and at 12% moisture content, for all the ages assessed. All the growth stresses estimates presented high, positive and significant correlations between themselves.info:eu-repo/semantics/openAccessSociedade de Investigações FlorestaisRevista Árvore v.32 n.4 20082008-08-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622008000400014en10.1590/S0100-67622008000400014 |
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Trugilho,Paulo Fernando Oliveira,José Tarcísio da Silva |
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Trugilho,Paulo Fernando Oliveira,José Tarcísio da Silva Relationships and estimates of longitudinal growth stress in Eucalyptus dunnii at different ages |
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Trugilho,Paulo Fernando Oliveira,José Tarcísio da Silva |
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Trugilho,Paulo Fernando |
title |
Relationships and estimates of longitudinal growth stress in Eucalyptus dunnii at different ages |
title_short |
Relationships and estimates of longitudinal growth stress in Eucalyptus dunnii at different ages |
title_full |
Relationships and estimates of longitudinal growth stress in Eucalyptus dunnii at different ages |
title_fullStr |
Relationships and estimates of longitudinal growth stress in Eucalyptus dunnii at different ages |
title_full_unstemmed |
Relationships and estimates of longitudinal growth stress in Eucalyptus dunnii at different ages |
title_sort |
relationships and estimates of longitudinal growth stress in eucalyptus dunnii at different ages |
description |
The objective of this study was to obtain estimates of longitudinal growth stresses in standing trees of the Eucalyptus dunnii Maiden at eight, thirteen, fifteen and nineteen years of age and to determine their relationships with wood characteristics. The longitudinal growth stresses were indirectly measured by the "CIRAD-Forêt" method and estimated from both the dynamic modulus of elasticity and the modulus of elasticity in tension parallel to the grain. The longitudinal residual strain (LRS) and the estimates of the longitudinal growth stresses tended to increase with the age of the material. The LRS correlated positively and significantly with all the growth stresses estimates. The largestes magnitudes were at 13, 15 and 19 years of age. The basic density presented high, positive and significant correlations with the dynamic modulus of elasticity, estimated in the longitudinal direction, for wood saturated and at 12% moisture content, for all the ages assessed. All the growth stresses estimates presented high, positive and significant correlations between themselves. |
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Sociedade de Investigações Florestais |
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2008 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622008000400014 |
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AT trugilhopaulofernando relationshipsandestimatesoflongitudinalgrowthstressineucalyptusdunniiatdifferentages AT oliveirajosetarcisiodasilva relationshipsandestimatesoflongitudinalgrowthstressineucalyptusdunniiatdifferentages |
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