摘要
用共振法、衰减法和声速法测定了五种木材试样的动态弹性模量和内耗,并分别与常规方法测得的静曲模量相比较,明确了各种方法之间是等价的。对推广这些方法于木材力学的研究有一定意义。
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.
出处
《南京林业大学学报（自然科学版）》
CAS
CSCD
1989年第4期21-28,共8页
Journal of Nanjing Forestry University：Natural Sciences Edition
关键词
木材
弹性模量
内耗
测量
木材力学
Wood
Dynamic modulus of elasticity
Internal friction
Forced vibration method
Free vibration method
Method of sound velocity measurement
