化香木材物理力学性质的研究

<正>本文研究化香木材的一些物理力学性质,测出了各种性质的平均值和标准差。对各种强度性质和容积重的关系进行了回归分析;对径、弦向强度平均数进行了差异显著性检验;对我国三个地区化香木材物理力学性质进行了比较。

STUDIES OF PHYSICAL AND MECHANICAL PROPEPTIES OF PLATYCARYA STROBILACEA

Platycarya strobilacea is a species widely distributed in China. This paper deals with some of its physical and mechanical properties, and the 5 boles experimented on were collected from Zhejiang province. The properties studied are specific gravity, width of growth rings, shrink and swell of wood, compressive strength parallel and perpendicular to the grain, tensils strength perpendicular to the grain, bending strength, shear strength parallel to the grain, toughness, hardness and some others. The mean value and standard deviation on each of the properties are given. Also given are the regression equations for various degrees of strength with respect to specific gravities. It has been analysed that the specific gravity of wood affects water sorption in the waterlogged condition.