Bending test results of small-sized glued laminated oak timber consisting of 2, 3 and 5 layers

Horváth, Dénes Ákos és Fehér, Sándor (2024) Bending test results of small-sized glued laminated oak timber consisting of 2, 3 and 5 layers. In: 11TH HARDWOOD CONFERENCE PROCEEDINGS : Sopron, Hungary, 30-31 May 2024. Hardwood conference proceedings . Soproni Egyetem Kiadó, Sopron, pp. 308-313. ISBN 9789633345184

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Absztrakt (kivonat)

This paper deals with glued-laminated timber (GLT) built up of low quality oak lamellae. Two-layered (40 mm), three-layered (45 mm) and five-layered (50 mm) GLTs were assessed to dynamical and statical tests in order to get the modulus of ruptures (MoR) and modulus of elasticities (MoE). The results showed that MoR is more than 60 MPa for the weaker samples and 80 MPa for the five-layered samples with low variance. MoE showed a decrease of altogether 7.7% with the increasing of the thickness. Nondestructive and destructive tests gave similar results. It can be concluded that the quality of the outer layers is very important for a GLT. But the inner layers may contain wood failures such as dead knots, slope of grain, etc.

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