Modulus of elasticity prediction through transversal vibration in cantilever beams and ultrasound technique of different wood species

The prediction of the modulus elasticity (MOE) five species different spectrum density woods, namely, Populus × euramericana I-214 (Poplar), Fagus sylvatica L. (Beech), Quercus pyrenaica (Oak), Paulownia elongata S.Y.Hu (Paulownia) and Pinus sylvestris (Scots pine) were examined through natural frequency vibration on cantilevered beams (transverse direction) ultrasound (longitudinal direction). Cantilever are commonly used for other materials but limited information is available wood tested in this manner. A total 60 specimens with nominal dimensions 40 1200 mm3 tested, which visually graded according to UNE 56544:2022 56546:2022 as first class, finally global bending stiffness was obtained from a four-point test. Utilising data, regression model presented predict MOE. Also, Picea sitchensis Trautv. & G.Mey (Sitka spruce) has been chosen blind order validate MOE function dynamic by ultrasound. Bending strength, EN 408. In using vibrations, an r2 95.9% achieved induced technique found be slightly higher than had 93.7%.