文献类型：期刊文献

中文题名：超声波预测落叶松规格材的抗弯性能

英文题名：Predicting Bending Performance of Larch Dimensional Lumber by an Ultrasonic Technique

作者：张训亚[1,2] 殷亚方[1,2] 罗彬[1,2] 姜笑梅[1,2]

第一作者：张训亚

机构：[1]中国林科院木材工业研究所;[2]国家林业局木材科学与技术重点实验室

年份：2010

卷号：24

期号：3

起止页码：1-3

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2008】；

基金："十一五"国家科技支撑计划项目(2006BAD18B07)

语种：中文

中文关键词：无损检测;超声波法;规格材;动态弹性模量;抗弯弹性模量;抗弯强度

外文关键词：non-destructive testing; ultrasonic method; dimensional lumber; dynamic modulus of elasticity; modulus of elasticity; modulus of rupture

分类号：S791.22;TS6

摘要：用超声波法测量落叶松规格材的动态弹性模量(DMOE),用弯曲试验测量其静态抗弯弹性模量(MOE)和抗弯强度(MOR),分析DMOE与MOE和MOR的相关性。研究结果表明:落叶松规格材的DMOE值比MOE高;DMOE与MOE和MOR的相关性均在0.01水平显著,DMOE与MOE的相关性高于DMOE与MOR的相关性。
The ultrasonic method,one of the important non-destructive evaluation（NDE） technologies,was used to determine the dynamic modulus of elasticity（DMOE） of dimensional lumber collected from a commercial larch（Larix gmelinii） forestry plantation in China.The modulus of elasticity（MOE） and modulus of rupture（MOR） were measured by a three-point bending test.The relationship between DMOE and static MOE,as well as the one between DMOE and static MOR were analyzed.The results indicated that the average DMOE value was greater than the average MOE value.Moreover,the relationship between DMOE and MOE and the relationship between DMOE and MOR were both significant at the 0.01 level.On the other hand,the determination coefficient between DMOE and MOE was greater than that between DMOE and MOR.