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<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>Biomechanics of buttressed trees: bending strains and stresses</title>
<creator>Clair, Bruno</creator>
<creator>Fournier, Meriem</creator>
<creator>Prevost, Marie-Françoise</creator>
<creator>Beauchêne, Jacques</creator>
<creator>Bardet, Sandrine</creator>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>UMR Botanique et bioinformatique de l'architecture des plantes ; Institut de Recherche pour le Développement (IRD)</contributor>
<contributor>Laboratoire de Mécanique et Génie Civil (LMGC) ; Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description> </description>
<description>International audience</description>
<source>ISSN: 0002-9122</source>
<source>American Journal of Botany</source>
<publisher>Botanical Society of America</publisher>
<identifier>hal-01032155</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01032155</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01032155/document</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01032155/file/Biomechanics_buttressed_trees_Clair_al_2003.pdf</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01032155</source>
<source>American Journal of Botany, Botanical Society of America, 2003, 90 (9), pp.1349-1356. 〈10.3732/ajb.90.9.1349〉</source>
<identifier>DOI : 10.3732/ajb.90.9.1349</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.90.9.1349</relation>
<language>en</language>
<subject lang=en>biomechanics</subject>
<subject lang=en>buttress</subject>
<subject lang=en>French Guiana</subject>
<subject lang=en>tropical trees</subject>
<subject lang=en>wood</subject>
<subject lang=ro>Sloanea spp</subject>
<subject lang=ro>Eleaocarpaceae</subject>
<subject>[SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The different hypotheses about buttress function and formation mainly involve mechanical theory. Forces were applied to two trees of Sloanea spp., a tropical genus that develops typical thin buttresses, and the three-dimensional strains were measured at different parts of the trunk base. Risks of failure were greater on the buttress sides, where shear and tangential stresses are greater, not on the ridges, in spite of high longitudinal (parallel to the grain) stresses. A simple beam model, computed from the second moment of area of digitized cross sections, is consistent with longitudinal strain variations but cannot predict accurately variations with height. Patterns of longitudinal strain variation along ridges are very different in the two individuals, owing to a pronounced lateral curvature in one specimen. The constant stress hypothesis is discussed based on these results. Without chronological data during the development of the tree, it cannot be proved that buttress formation is activated by stress or strain.</description>
<date>2003</date>
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