Influence of grain angle on stiffness and resistance of beech and poplar veneer
Communication avec acte
Mechanical characterization of veneers is a scientific obstacle for technical products made with them. These products as the LVL (Laminated Veneer Lumber) can have better properties than solid wood. In the objective to produce high-performance technical products, the mechanical characterization of veneers is necessary. To achieve this objective, an experimental protocol of 8 stages has been performed to characterize veneers of beech and poplar and quantify parameters such as the fiber orientation and components of the compliance matrix. This experimental protocol takes into account the manufacturing of specimens, the global and local density, the fiber orientations, the modulus of elasticity (MoE), and the shear modulus. The mechanical properties are found with the digital image correlation.
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Communication avec actePOT, Guillaume; DENAUD, Louis; COLLET, Robert; GIRARDON, Stéphane; COTTIN, Fabrice (FPInnovations, 2015)Laminated veneer lumber (LVL) is a high-performance engineered wood product made of several wood veneers bound together mostly in grain direction. Veneers are obtained thanks to peeling process. This cutting process induces ...
New Perspectives for LVL Manufacturing from Wood of Heterogeneous Quality—Part. 1: Veneer Mechanical Grading Based on Online Local Wood Fiber Orientation Measurement Article dans une revue avec comité de lectureDURIOT, Robin; POT, Guillaume; GIRARDON, Stéphane; ROUX, Benjamin; MARCON, Bertrand; VIGUIER, Joffrey; DENAUD, Louis (MDPI AG, 2021)The grading of wood veneers according to their true mechanical potential is an important issue in the peeling industry. Unlike in the sawmilling industry, this activity does not currently estimate the local properties of ...
New Perspectives for LVL Manufacturing from Wood of Heterogeneous Quality—Part 2: Modeling and Manufacturing of Variable Stiffness Beams Article dans une revue avec comité de lectureDURIOT, Robin; POT, Guillaume; GIRARDON, Stéphane; DENAUD, Louis (MDPI AG, 2021)This paper presents a new strategy in the use of wood of heterogeneous quality for composing LVL products. The idea is to consider veneers representative of the resource variability and retain local stiffness information ...
Article dans une revue avec comité de lectureDURIOT, Robin; RESCALVO, Francisco J.; POT, Guillaume; DENAUD, Louis; GIRARDON, Stéphane; FRAYSSINHES, Remy (Elsevier BV, 2021)The French resource of large diameter Douglas fir is currently still growing, while these large diameter trees are complicated to process efficiently by the sawmilling industry. The rotary peeling process appeared to be ...
Communication avec acteDURIOT, Robin; FRAYSSINHES, Rémy; RESCALVO, Francisco J.; COLLET, Robert; DENAUD, Louis; GIRARDON, Stéphane; POT, Guillaume; COTTIN, Fabrice; BUTAUD, Jean-Claude (2019)Selon un rapport rendu au Sénat le 26 juin 2019, le vieillissement du patrimoine des ponts du réseau routier est un problème à traiter en France. Le remplacement progressif d’environ 10% de ces ouvrages est à envisager dès ...