BENDING, SHEARING, AND COMPRESSION PROPERTIES OF FAST GROWING FRENCH DOUGLAS FIR LVL
Communication avec acte
The French resource of large diameter Douglas fir is currently keeping growing, while these large diameter trees are complicated to process efficiently by the sawmilling industry. The rotary peeling process appeared to be particularly adapted as an alternative to the usual sawing. This primary processing method produces veneers used to make a wood engineering product material called Laminated Veneer Lumber (LVL). The manufacturing process of LVL enables the distribution of the resource defects, allowing for increased mechanical behaviour compared to the solid wood from which it comes from. The main objective of this study is to present the principal Douglas-fir heartwood LVL mechanical properties such as longitudinal and shear moduli of elasticity, bending, shear and compressive strengths. Up to now, there were no study on LVL derived from this resource. This study focuses on heartwood because of its very interesting natural durability properties for constructive outdoor applications. Moreover, a comparison with structural timber properties was also achieved to place the material in terms of mechanical performance among the market. Globally, this LVL material showed high compressive and shear properties. Nevertheless, even though the bending properties were significantly lower than data from Douglas-fir LVL literature, they are still quite acceptable for structural applications.
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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 ...
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 ...
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 ...
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