Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species
Growth strains were measured in situ in nine trees of three species from a French Guiana tropical rainforest in a clearly active verticality restoration process. The aim was to detect tension wood within the samples. Wood specimens were cut in the vicinity of the growth strain measurements in order to determine the microfibril angle and some mechanical and physical properties. As suspected, tensile growth strain was much higher in tension wood zones, as shown by the slightly higher longitudinal modulus of elasticity. Conversely, tension wood showed reduced compression strength. Longitudinal shrinkage was much higher in tension wood than in opposite wood. Clear relationships between the microfibril angle and longitudinal properties were noted in comparison (i) with those observed in gymnosperm compression wood and (ii) with expected relationships from the organization of wood fibres cell wall structure.
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Subjects: | K50 - Technologie des produits forestiers, F62 - Physiologie végétale - Croissance et développement, F50 - Anatomie et morphologie des plantes, forêt tropicale humide, bois, propriété mécanique, propriété physicochimique, anatomie végétale, bois tropical, http://aims.fao.org/aos/agrovoc/c_7976, http://aims.fao.org/aos/agrovoc/c_8421, http://aims.fao.org/aos/agrovoc/c_4683, http://aims.fao.org/aos/agrovoc/c_1521, http://aims.fao.org/aos/agrovoc/c_5954, http://aims.fao.org/aos/agrovoc/c_293007aa, http://aims.fao.org/aos/agrovoc/c_3093, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/562996/ http://agritrop.cirad.fr/562996/1/document_562996.pdf |
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dig-cirad-fr-5629962024-01-28T20:02:02Z http://agritrop.cirad.fr/562996/ http://agritrop.cirad.fr/562996/ Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species. Ruelle Julien, Beauchêne Jacques, Yamamoto Hiroyuki, Thibaut Bernard. 2011. Wood Science and Technology, 45 (2) : 339-357.https://doi.org/10.1007/s00226-010-0323-9 <https://doi.org/10.1007/s00226-010-0323-9> Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species Ruelle, Julien Beauchêne, Jacques Yamamoto, Hiroyuki Thibaut, Bernard eng 2011 Wood Science and Technology K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes forêt tropicale humide bois propriété mécanique propriété physicochimique anatomie végétale bois tropical http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_4683 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_293007aa Guyane française France http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 Growth strains were measured in situ in nine trees of three species from a French Guiana tropical rainforest in a clearly active verticality restoration process. The aim was to detect tension wood within the samples. Wood specimens were cut in the vicinity of the growth strain measurements in order to determine the microfibril angle and some mechanical and physical properties. As suspected, tensile growth strain was much higher in tension wood zones, as shown by the slightly higher longitudinal modulus of elasticity. Conversely, tension wood showed reduced compression strength. Longitudinal shrinkage was much higher in tension wood than in opposite wood. Clear relationships between the microfibril angle and longitudinal properties were noted in comparison (i) with those observed in gymnosperm compression wood and (ii) with expected relationships from the organization of wood fibres cell wall structure. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/562996/1/document_562996.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s00226-010-0323-9 10.1007/s00226-010-0323-9 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00226-010-0323-9 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s00226-010-0323-9 |
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K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes forêt tropicale humide bois propriété mécanique propriété physicochimique anatomie végétale bois tropical http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_4683 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_293007aa http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes forêt tropicale humide bois propriété mécanique propriété physicochimique anatomie végétale bois tropical http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_4683 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_293007aa http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
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K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes forêt tropicale humide bois propriété mécanique propriété physicochimique anatomie végétale bois tropical http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_4683 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_293007aa http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes forêt tropicale humide bois propriété mécanique propriété physicochimique anatomie végétale bois tropical http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_4683 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_293007aa http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 Ruelle, Julien Beauchêne, Jacques Yamamoto, Hiroyuki Thibaut, Bernard Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species |
description |
Growth strains were measured in situ in nine trees of three species from a French Guiana tropical rainforest in a clearly active verticality restoration process. The aim was to detect tension wood within the samples. Wood specimens were cut in the vicinity of the growth strain measurements in order to determine the microfibril angle and some mechanical and physical properties. As suspected, tensile growth strain was much higher in tension wood zones, as shown by the slightly higher longitudinal modulus of elasticity. Conversely, tension wood showed reduced compression strength. Longitudinal shrinkage was much higher in tension wood than in opposite wood. Clear relationships between the microfibril angle and longitudinal properties were noted in comparison (i) with those observed in gymnosperm compression wood and (ii) with expected relationships from the organization of wood fibres cell wall structure. |
format |
article |
topic_facet |
K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes forêt tropicale humide bois propriété mécanique propriété physicochimique anatomie végétale bois tropical http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_8421 http://aims.fao.org/aos/agrovoc/c_4683 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_293007aa http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Ruelle, Julien Beauchêne, Jacques Yamamoto, Hiroyuki Thibaut, Bernard |
author_facet |
Ruelle, Julien Beauchêne, Jacques Yamamoto, Hiroyuki Thibaut, Bernard |
author_sort |
Ruelle, Julien |
title |
Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species |
title_short |
Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species |
title_full |
Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species |
title_fullStr |
Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species |
title_full_unstemmed |
Variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species |
title_sort |
variations in physical and mechanical properties between tension and opposite wood from three tropical rainforest species |
url |
http://agritrop.cirad.fr/562996/ http://agritrop.cirad.fr/562996/1/document_562996.pdf |
work_keys_str_mv |
AT ruellejulien variationsinphysicalandmechanicalpropertiesbetweentensionandoppositewoodfromthreetropicalrainforestspecies AT beauchenejacques variationsinphysicalandmechanicalpropertiesbetweentensionandoppositewoodfromthreetropicalrainforestspecies AT yamamotohiroyuki variationsinphysicalandmechanicalpropertiesbetweentensionandoppositewoodfromthreetropicalrainforestspecies AT thibautbernard variationsinphysicalandmechanicalpropertiesbetweentensionandoppositewoodfromthreetropicalrainforestspecies |
_version_ |
1792498057736093696 |