Effect of Forestry Management and Veneer Defects Identified by X-ray Analysis on Mechanical Properties of Laminated Veneer Lumber Beams Made of Beech
Article dans une revue avec comité de lecture
This study proposes an innovative model based on local grain angle measurements to predict the modulus of elasticity of LVL made from beech. It includes a veneers sorting method industrially compatible thanks to its low computational time. For this study 41 LVL panels were prepared from 123 beech sheets of veneers. Local grain angle was obtained with a two dimensional scanner and veneer density was measured. Several models based on these measurements have been developed and their ability to predict the modulus of elasticity of LVL panels have been compared. The model based only on local grain angle measurements have been proven more efficient than models taking into account the veneer density. The proposed method can be used to sort veneer during the peeling process and grade the production of LVL panels to optimize their mechanical properties even for low-quality veneer.
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Le BOis pOur les STructures des véhicules (Projet BOOST) : Caractérisation mécanique et physique locale de placages pour la conception optimisée de structures Communication sans acteMARC, Caroline; MARCON, Bertrand; DENAUD, Louis; GIRARDON, Stéphane; VIGUIER, Joffrey; YAICH, Mariem (2021)La thèse s’inscrit dans le cadre du projet ANR BOOST multipartenaires dont l’objectif général est de de faire la démonstration de la possibilité de l’utilisation du bois, sous forme de placages en produit lamellé, pour son ...
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 ...
Veneer Mechanical Grading Based on Online Local Wood Fiber Orientation Measurements to Model and Manufacture Stiffness Optimized Structural Beams Communication avec acteDURIOT, Robin; POT, Guillaume; GIRARDON, Stéphane; ROUX, BENJAMIN; MARCON, Bertrand; VIGUIER, Joffrey; DENAUD, Louis (2023-10-04)Grading veneer for plywood manufacturing is often performed on line using visual criteria issued from EN 635-3 standard. For mechanical applications, the only visual criteria can be not sharp enough to accurately grade ...
Lathe check development and properties: effect of log soaking temperature, compression rate, cutting radius and cutting speed during peeling process of European beech (Fagus sylvatica L.) veneer Article dans une revue avec comité de lectureROHUMAA, Anti; VIGUIER, Joffrey; GIRARDON, Stéphane; KREBS, Michael; DENAUD, Louis (Springer Verlag, 2018)The depth of lathe checks and integrity of veneer have been shown to be critical factors affecting the bonding process but also affecting the mechanical properties of veneer-based products. This study shows how beech (Fagus ...
Article dans une revue avec comité de lecturePURBA, Citra Yanto Ciki; VIGUIER, Joffrey; DENAUD, Louis; MARCON, Bertrand; POMMIER, Régis (Springer Science and Business Media LLC, 2022)The present study is based on the patent FR3052379A1, which consists of rolling and gluing green veneers to form structural size hollow tubes. The objective was to study the drying behavior of circular hollow tubes and ...