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<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd> <responseDate>2018-01-15T15:37:52Z</responseDate> <request identifier=oai:HAL:hal-00544382v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request> <GetRecord> <record> <header> <identifier>oai:HAL:hal-00544382v1</identifier> <datestamp>2018-01-11</datestamp> <setSpec>type:ART</setSpec> <setSpec>subject:spi</setSpec> <setSpec>collection:CNRS</setSpec> <setSpec>collection:UNIV-AG</setSpec> <setSpec>collection:LMGC</setSpec> <setSpec>collection:AGROPARISTECH</setSpec> <setSpec>collection:CIRAD</setSpec> <setSpec>collection:INRA</setSpec> <setSpec>collection:ECOFOG</setSpec> <setSpec>collection:AGROPOLIS</setSpec> <setSpec>collection:MIPS</setSpec> <setSpec>collection:UNIV-MONTPELLIER</setSpec> <setSpec>collection:AGREENIUM</setSpec> </header> <metadata><dc> <publisher>HAL CCSD</publisher> <title lang=en>Identification of anisotropic vibrational properties of Padauk wood with interlocked grain</title> <creator>Brémaud, Iris</creator> <creator>Cabrolier, Pierre</creator> <creator>Gril, Joseph</creator> <creator>Clair, Bruno</creator> <creator>Gérard, Jean</creator> <creator>Minato, Kazuya</creator> <creator>Thibaut, Bernard</creator> <contributor>Mécanique de l'Arbre et du Bois (MAB) ; Laboratoire de Mécanique et Génie Civil (LMGC) ; Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>Laboratoire de Mécanique et Génie Civil (LMGC) ; Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>Production et valorisation des bois tropicaux (Bois tropicaux) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD)</contributor> <contributor>Laboratory of Forest Resources Circulatory System ; Kyoto Prefectural University</contributor> <contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor> <description>International audience</description> <source>ISSN: 0043-7719</source> <source>EISSN: 1432-5225</source> <source>Wood Science and Technology</source> <publisher>Springer Verlag</publisher> <identifier>hal-00544382</identifier> <identifier>https://hal.archives-ouvertes.fr/hal-00544382</identifier> <identifier>https://hal.archives-ouvertes.fr/hal-00544382/document</identifier> <identifier>https://hal.archives-ouvertes.fr/hal-00544382/file/Identification_anisotropic_vibrational_properties_Bremaud_al.pdf</identifier> <source>https://hal.archives-ouvertes.fr/hal-00544382</source> <source>Wood Science and Technology, Springer Verlag, 2010, 44 (3), pp.355-367. 〈10.1007/s00226-010-0348-0〉</source> <identifier>DOI : 10.1007/s00226-010-0348-0</identifier> <relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s00226-010-0348-0</relation> <language>en</language> <subject lang=en>Anisotropy</subject> <subject lang=en>Damping coefficient</subject> <subject lang=en>Extractives</subject> <subject lang=en>Grain angle</subject> <subject lang=en>Interlocked grain</subject> <subject lang=en>Microfibril angle</subject> <subject lang=en>Vibrational properties</subject> <subject lang=en>Young's modulus</subject> <subject>[SPI.OTHER] Engineering Sciences [physics]/Other</subject> <type>info:eu-repo/semantics/article</type> <type>Journal articles</type> <description lang=en>Grain deviations and high extractives content are common features of many tropical woods. We aimed at clarifying their respective impact on vibrational properties, referring to African Padauk (Pterocarpus soyauxii Taub.), a species selected for its interlocked grain, high extractives content, and uses in xylophones. Specimens were cut parallel to the trunk axis (L), and local variations in grain angle (GA), microfibril angle (MFA), specific Young's modulus (E'L/ρ, where r stands for specific gravity) and damping coefficient (tanδL), were measured. GA dependence was analyzed by a mechanical model which allowed to identify the specific Young's modulus (E'3/ρ) and shear modulus (G'/ρ) along the grain (3), as well as their corresponding damping coefficients (tanδ3, tanδG). This analysis was done for native and then for extracted wood. Interlocked grain resulted in 0-25° GA and in variations of a factor 2 in E'L/ρ and tanδL. Along the grain, Padauk wood was characterized, as compared to typical hardwoods, by a somewhat lower E'3/ρ and elastic anisotropy (E'/G'), due to a wide microfibril angle plus a small weight effect of extracts; and a very low tanδ3 and moderate damping anisotropy (tanδG/tanδ3). Extraction affected mechanical parameters in the order: tanδ3 ≈ tanδG > G'/ρ >> E'3/ρ. That is, extractives' effects were nearly isotropic on damping but clearly anisotropic on storage moduli.</description> <date>2010</date> </dc> </metadata> </record> </GetRecord> </OAI-PMH>