Improving strength grading of lumber by grain angle measurement and mechanical modeling
dc.contributor.author | JEHL, Arnaud |
dc.contributor.author | BLERON, Laurent |
dc.contributor.author | MERIAUDEAU, Fabrice |
dc.contributor.author
hal.structure.identifier | COLLET, Robert
|
dc.contributor.author
hal.structure.identifier | VIGUIER, Joffrey
|
dc.date.accessioned | 2014 |
dc.date.available | 2015 |
dc.date.issued | 2015 |
dc.date.submitted | 2014 |
dc.identifier.issn | 1748-0272 |
dc.identifier.uri | http://hdl.handle.net/10985/8500 |
dc.description.abstract | Timber strength grading has become a major issue in the European Union during the last years, due to the introduction of the Eurocode 5 and all its related standards. Currently, the most performing strength grading machines are able to locally detect the boards’ knots sizes and positions and interpret this information through adapted grading models. The best lead to improve their accuracy seems to be the introduction of new information about the boards and adapt the mechanical model to take them in account. Small grain angle causes high reduction of clear wood’s mechanical properties, local value of slope of grain appears to be of high interest. The aim of this study is to quantify the additionalaccuracy that grain angle information can bring toan optical scanner used as a strength grading machine. A specific grading model has been developed accordingly, and the results obtained for different machine / model / loading combinations are presented. These results show that slope of grain measurement can significantly improve the accuracy of the optical scanner, for both MOE and MOR estimations. |
dc.description.sponsorship | ANR ClaMeB |
dc.language.iso | en |
dc.publisher | Taylor & Francis |
dc.rights | Post-print |
dc.subject | Grain Angle |
dc.subject | Strength Grading |
dc.subject | Spruce |
dc.subject | X-Ray |
dc.title | Improving strength grading of lumber by grain angle measurement and mechanical modeling |
ensam.embargo.terms | 1 Year |
dc.typdoc | Article dans une revue avec comité de lecture |
dc.localisation | Centre de Cluny |
dc.subject.hal | Sciences de l'ingénieur: Mécanique |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Génie mécanique |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Matériaux et structures en mécanique |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des matériaux |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des solides |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des structures |
ensam.audience | Internationale |
ensam.page | 24 |
ensam.journal | Wood Material Science and Engineering |
hal.identifier | hal-01063383 |
hal.version | 1 |
hal.status | accept |
dc.identifier.eissn | 1748-0280 |