Deakin University
This study aims to investigate the effect of adhesives on the interfacial fracture properties of thin wood veneer laminates made from European Beech. Single veneer plies of 0.6 mm thickness were laid up by hand to produce unidirectional laminates with a final thickness of 3.8 mm. These laminates were then subjected to Mode I and Mode II fracture tests following ASTM 5528 and 7905, respectively, for fibre-reinforced polymer materials. Two types of adhesives, one component fast-cured polyurethane glue (LOCTITTE PURBOND HB S 109) and one component conventional polyurethane glue (LOCTITTE PURBOND HB S 309), were taken into account to investigate the effect of adhesives on the fracture properties at veneer interfaces. Results indicate that samples with S109 glue yielded higher fracture properties with lower standard deviation compared to its counterparts made from S309. However, the use of fast-cure S109 glue complicates the manufacturing process as less time is available for an accurate and consistent hand lay-up process.
Abstract
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