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林业科学 ›› 1996, Vol. 32 ›› Issue (3): 254-259.

• 论文及研究报告 • 上一篇    下一篇

杉木径面及弦面的木材力学性质的差异*

蔡则谟   

  1. 中国林业科学研究院热带林业研究所, 广州 510520
  • 收稿日期:1995-03-23 出版日期:1996-05-25 发布日期:1996-05-25

DIFFERENCE BETWEEN WOOD MECHANICAL PROPERTIES OF THE RADIAL AND TANGENTIAL SECTIONS OF CHINESE FIR

Zemo Cai   

  1. Institute of Tropical Forestry CAF Guangzhou 510520
  • Received:1995-03-23 Online:1996-05-25 Published:1996-05-25

摘要:

16个杉木样本的木材力学试验结果表明, 除横纹抗压强度外, 弦面的抗弯强度和弹性模量、冲击韧性、顺纹抗剪强度及抗劈力均不同程度高于径面。分析了引起差异的原因。

关键词: 杉木, 木材力学性质, 各向异性

Abstract:

The results of wood mechanical tests of Chinese fir (Cunninghamia lancelata (Lam.) Hook) belonging to 16 sampls show that in static bending, toughness, shear parallel to the grain and cleavage wood is more resistent to a force acting on its tangential sections than on its radial sections to a different extent except compressive force perpendicular to the grain. The cause of the difference induced is analysed.

Key words: Chinese fir, Wood mechanical property, Anisotropic behavour