The fracture properties of wood heat-treated
2005
Honda, T.(Yamanashi-ken. Forest Research Inst. (Japan))
Fracture properties of the lamina which was treated at high temperature was investigated with the fracture toughness test and bending test of the TL system. Significant difference was not recognized between the heat-treated wood and the natural dried wood in regard to modulus of elasticity and modulus of rupture in bebding. On the one hand, in case of steam drying, fracture toughness Ksub(IC) increased. In addition, in case of which of steam drying and hot-air drying, equilibrium moisture content decreased by comparison with that of the natural dried wood. It was verified that the fracture toughness test was effective to the case where property of the lumber which is dried at high temperature is evaluated.
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