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几种测量木材弹性模量及内耗的方法比较(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1989年04期
Page:
21-28
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
A COMPARISON OF SOME METHODS FOR MEASURING THE DYNAMIC MODULUS OF ELASTICITY AND THE INTERNAL FRICTION OF WOOD
Article ID:
1000-2006(1989)04-0021-08
Author(s):
Shi Bozhang Euan Xigen Wu Dagi
Nanjing Forestry University
Keywords:
Wood Dynamic modulus of elasticity Internal friction Forced vibration method Free vibration method Method of sound velocity measurement
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1989.04.004
Document Code:
A
Abstract:
Using the methods of forced vibration, free vibration and sound velocity measurement, specimens of five species of wood have been examined for their dynamic modulus of elasticity and internal friction. The results obtained from these methods have been compared with each other, and the values of dynamic modulus of elasticity determined by these methods have also been compared with the values of elastic modulus of static bending measured by conventional method. Consequently, some mechanical properties of wood have been acquired, and it has been made clear that all these different methods are equivalent. The will contribute to some extent to the introduction of these methods to the research of mechanical properties of wood.

References

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Last Update: 1900-01-01