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Identification of local to global mechanical properties of clear wood peeled veneers from off axis tensile tests using full-field local displacement measurements

Article dans une revue sans comité de lecture
Author
ccDEMOULIN, Leyne
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
ccPOT, Guillaume
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
DENAUD, Louis
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
GIRARDON, Stéphane
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
MARCON, Bertrand
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]

URI
http://hdl.handle.net/10985/25405
Date
2024-07-05
Journal
Material and Structural behavior

Abstract

This study examines the influence of fiber orientation variability on the mechanical properties of wood, focusing on veneer clear wood specimens. The research is motivated by the need to develop high performance composite materials for sustainable transportation applications, particularly in reducing greenhouse gas emissions. The experimental protocol involves manufacturing veneers from beech wood, followed by producing the manufacturing of veneers from beech wood, followed by the production of small specimens with deliberate variations in fiber orientation. Non-destructive measurements of local fiber orientations and global density are conducted, along with tensile tests to determine local mechanical properties, i.e., Young's modulus, strength, and the shear modulus Advanced imaging techniques (DIC) and models for isotropic materials are employed for analysis.The resultsreveal that fiber orientation has a significant role in wood variability, with pronounced effects on Young's modulus and strength at low angles. Transversal and shear modulus appear lower than in the literature due to the cracks due to the manufacturing of veneer (peeling process).

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