摘要
对GB 1927-91《木材物理力学实验方法》中的两个力学性质测试方法做了分析探讨。指出,由于木材的黏弹性,在循环试验中读取下、上限值计算抗弯弹性模量存在偏差及在木材硬度试验方法中关于半压硬度的修正系数对侧面不正确,并提出了改进建议。
Two testing methods of GB 1927-91 were analyzed and discussed. The results showed that, because of viscous-elastics of wood, there is deficiency choosing minimum and maximum values in measurement of wood modulus of elasticity and the revised coefficient of values for wood hardness of side section when half pressure were loaded is not right, and the improved methods were made suggestions.
出处
《林业机械与木工设备》
2006年第8期16-18,共3页
Forestry Machinery & Woodworking Equipment
基金
国家自然基金项目(30571452)资助
关键词
国家标准
木材抗弯弹性模量
木材硬度
测试方法
standard of country
wood modulus of elasticity
wood hardness
test methods
