Abstract
In light of recent needs to characterise the performance of wood-based panels on medium-sized test pieces, we examine herein an innovative test system designed to determine the behaviour of Poplar plywood under planar shear. As an alternative to the methodology suggested by recent European Standards on an experimental basis and not in a prescriptive way, this system utilizes thin singleuse metal plates which are bonded to the test piece faces. The composite sample can then be inserted into the test machine using a suitable interfacing support.
Résumé
Afin de caractériser la performance des panneaux à base de bois, en utilisant des éprouvettes de dimensions moyennes, nous présentons un système d'essais innovant conçu pour déterminer le comportement du contreplaqué de peupier sous cisaillement plan. Ce système est une alternative à la méthode expérimentale suggérée par de récentes normes européennes. Il utilise des plaques métalliques minces à usage unique qui sont collées à la surface des éprouvettes. L'éprouvette ainsi composée peut alors être insérée dans la machine d'essai au moyen d'un support d'interface adapté.
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References
European Standards:
EN 789, ‘Timber structures—Testing of wood-based panels for the determination of mechanical properties for structural purposes’.
EN 1058, ‘Wood-based panels—Determination of characteristic values of mechanical properties and density’.
prEN 12369, ‘Wood-based panels. Characteristic values for established products’.
EN 392, ‘Glued laminated timber—Glue-line shear test’.
pr EN 1193, ‘Structural and glued laminated timber. Determination of additive physical and mechanical properties’.
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Editorial note N. Baldassino, P. Zanon and R. Zanuttini are working at the University of Trento, Department of Structural Mechanics and Design Automation, Trento, Italy, a RILEM Associate Member.
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Baldassino, N., Zanon, P. & Zanuttini, R. A new device for planar shear tests on wood-based panels. Mat. Struct. 30, 634–639 (1997). https://doi.org/10.1007/BF02486907
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DOI: https://doi.org/10.1007/BF02486907