A MODIFIED THEORY OF COMPOSITE MECHANICS TO PREDICT TENSILE MODULUS OF RESINATED WOOD

作者：Wei, Peixing; Rao, Xin; Wang, Brad Jianhe; Dai, Chunping; Wei, Peixing; Zhou, Dingguo

来源：Wood Research, 2015, 60(4): 567-582.

• Composite mechanics
• tensile MOE
• resinated wood
• glue penetration

In this work, a modified theory (model) of composite mechanics was developed to predict the tensile modulus of elasticity (MOE) of resinated wood with the consideration of glue penetration. Variables built into the model included species, glue solids spread (GS), wood thickness and compression ratio (CR). The results showed that the effect of glue on the wood tensile MOE differed from species to species. With the increase of glue dosage, thOE first increased linearly and then leveled off at a threshold level of GS. Further increase of glue dosage made the MOE exhibit either a small increase or a decrease depending on the wood and glue properties. With a normal range of GS (50 to 90 g.m(-2)), the effect of glue on the wood tensile MOE became negligible if wood thickness was larger than 1.4 mm. Also, an increase in CR resulted in a predictable increase of the wood MOE. The model prediction showed a good agreement with the published experimental results. Further validation of the model is underway.

• 出版日期2015
• 单位江苏农林职业技术学院; 南京林业大学