人工林杉木、马尾松木材的断裂特性

MORPHOLOGY OF WOOD FRACTURE OF CHINESE FIR AND MASSON PINE

使用扫描电子显微镜观察杉木、马尾松横纹拉应力、顺纹拉应力及冲击载荷作用下的破坏表面 ,结果表明不同的加载方式、加载速度对木材的断裂过程有影响 ;木材的微观构造影响其断裂过程。

The failure surfaces of Chinese fir and Masson pine under tension perpendicular to grain, tension parallel to grain and impacting are observed by SEM. The results show that the pattern of load and the speed of load have effect on wood fracture. The microscopic structure of wood also influences wood fracture.