代表的な建築用木材のモードI破壊じん性値KICと釘打ちによって生じる木材の割れ量の関係
1998 年 47 巻 4 号 p. 356-360
詳細
1998 年 47 巻 4 号 p. 356-360
The objective of this research was to investigate the characteristics of KIC for wood species with reference to the infomation of wood crack induced by nailing. The wood crack characteristics by nailing were investigated using barium soaking method. According to the relationship between specific gravity and maximum crack length (Lm), three wood species groups were employed; Group C1: easy to crack such as Douglas-fir, Hemlock, and Lawson sypress, Group C3: hard to crack such as Radiata pine, Agathis, Japanese beech, Group C2: intermediate between C1 and C3. The same wood group concept was applicable to describe the characteristic of KIC. The relationship between specific gravity and KIC could not be described by one regression curve, but within each wood group, specific gravity had a good correlation with KIC. Also, the relationship between KIC and Lm had a good correlation within each wood group.
