untitled
<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd>
<responseDate>2018-01-15T18:36:03Z</responseDate>
<request identifier=oai:HAL:hal-00804236v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request>
<GetRecord>
<record>
<header>
<identifier>oai:HAL:hal-00804236v1</identifier>
<datestamp>2018-01-11</datestamp>
<setSpec>type:ART</setSpec>
<setSpec>subject:spi</setSpec>
<setSpec>subject:phys</setSpec>
<setSpec>collection:LMGC</setSpec>
<setSpec>collection:CNRS</setSpec>
<setSpec>collection:AGROPARISTECH</setSpec>
<setSpec>collection:CIRAD</setSpec>
<setSpec>collection:UNIV-AG</setSpec>
<setSpec>collection:INRA</setSpec>
<setSpec>collection:ECOFOG</setSpec>
<setSpec>collection:MIPS</setSpec>
<setSpec>collection:UNIV-MONTPELLIER</setSpec>
<setSpec>collection:AGREENIUM</setSpec>
</header>
<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>Effect of extractives on vibrational properties of African Padauk (Pterocarpus soyauxii Taub.)</title>
<creator>Brémaud, Iris</creator>
<creator>Amusant, Nadine</creator>
<creator>Minato, Kazuya</creator>
<creator>Gril, Joseph</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>CIRAD-PERSYST Department ; Research unit: Production and Processing of Tropical Woods</contributor>
<contributor>Laboratory of Forest Resource Circulating Circles ; 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-00804236</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00804236</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00804236/document</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00804236/file/Effect_extractives_vibrational_properties_Bremaud_al.pdf</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00804236</source>
<source>Wood Science and Technology, Springer Verlag, 2011, 45 (3), pp.461-472. 〈10.1007/s00226-010-0337-3〉</source>
<identifier>DOI : 10.1007/s00226-010-0337-3</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s00226-010-0337-3</relation>
<language>en</language>
<subject lang=en>Young's modulus</subject>
<subject lang=en>Vibrational properties</subject>
<subject lang=en>Tropical hardwood</subject>
<subject lang=en>Damping coefficient Extractives</subject>
<subject lang=en>Heartwood</subject>
<subject lang=en>Pterocarpus soyauxii</subject>
<subject>[SPI.MECA.SOLID] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the solides [physics.class-ph]</subject>
<subject>[PHYS.MECA.SOLID] Physics [physics]/Mechanics [physics]/Mechanics of the solides [physics.class-ph]</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Extractives can affect vibrational properties tanδ (damping coefficient) and E'/ρ (specific Young's modulus) but this is highly dependent on species, compounds, and cellular locations. This paper investigates such effects for African Padauk (Pterocarpus soyauxii Taub.), a tropical hardwood with high extractives content and a preferred material for xylophones. 5 groups of 26 heartwood specimens with large, yet comparable, ranges in vibrational properties were extracted in different solvents. Changes in vibrational properties were set against yields of extracts and evaluation of their cellular location. Methanol (ME) reached most of compounds (13%), located about half in lumen and half in cell-wall. Water solubility was extremely low. tanδ and E'/ρ were very strongly related (R2≥0.93), but native wood had abnormally low values of tanδ, while extraction shifted this relation towards higher tanδ values. ME extracted heartwood became in agreement with the average of many species, and close to sapwood. Extractions increased tanδ as much as 60%, irrespective of minute moisture changes or of initial properties. Apparent E'/ρ was barely changed (+2% to -4%) but, after correcting the mass contribution of extracts, was in fact slightly reduced (down to -10% for high E'/ρ), and increasingly so for specimens with low initial values of E'/ρ.</description>
<date>2011</date>
</dc>
</metadata>
</record>
</GetRecord>
</OAI-PMH>