摘要
以樟子松木材为试验对象,分别运用横向振动法和静态弯曲法得出其动态弹性模量和静态抗弯弹性 模量,重点对二者的关系以及尺寸、节子等因素对动态弹性模量的影响进行了研究。其结论是:动态弹性模量与静 态抗弯弹性模量以及抗弯强度都有很好的相关关系;尺寸对动态弹性模量没有显著性的影响;节子的个数对木材 动态弹性模量有显著性影响。
In order to find the regression relation of dynamic modulus of elasticity and static modulus of elasticity, and study influencing factors such as dimension and knots which affect dynamic modulus of elasticity, the paper got dynamic modulus of elasticity depending on transverse vibration experiment, as well as static modulus of elasticity depending on the bending experiment, though testing pinus sylvestris var. mogonica. It is found that there are obvious pertinence between dynamic modulus of elasticity and static modulus of elasticity, further more, dynamic modulus of elasticity are affected remarkably by the number of knots rather than dimension.
出处
《林业机械与木工设备》
2005年第10期24-28,共5页
Forestry Machinery & Woodworking Equipment
基金
北京林业大学研究生自选课题基金资助项目
关键词
振动法
动态弹性模量
静态抗弯弹性模量
抗弯强度
vibration method
dynamic modulus of elasticity
static modulus of elasticity
bending strength
