This study presents three-point bending test results of Norway spruce clear wood specimens loaded on the radial-longitudinal plane in two different load cases. The tested samples were graded as resonance wood for instrument making and were characterised by narrow annual rings and relatively low density. The modulus of elasticity (MOE) and the corresponding… (More)
In the present study 50 year old urea formaldehyde bonds of a glider structure were tested. Based on the tensile shear strength of lap joint specimens it was concluded that bonds with solid wood as adherent are rated as not reliable any more.