Comparison of European standard EN 310 and EN 789 in determining the bending strength and modulus of elasticity of red seraya (Shorea spp.) plywood panel: experimental and finite element analysisVergleich der Biegefestigkeit und des Elastizitätsmoduls von Sperrholz aus Rotem Seraya (Shorea spp.) bestimmt nach den europäischen Normen EN 310 und EN 789: Experimentelle Untersuchung und Finite-Elemente-Analyse

The characteristic bending strength (MOR) and mean modulus of elasticity (MOE) of red seraya (Shorea spp.) plywood was determined using European Standard bending tests EN 310 and EN 789. The experiment found that the MOR of EN310 was higher whereas MOE were lower than those obtained from EN 789. The study also found that the choice of wood species influenced the correlation of MOR and MOE obtained by EN 310 and EN 789. Finite element (FE) model was proposed to predict MOR and MOE values. The FE analysis method showed satisfactory agreement with the experimental results, especially for EN 789. The R2 values for EN 789 attempted through linear regressions range from 0.96 to 0.99. Nevertheless, it was noted that the FE models in this study had put some limitations on the prediction.