超声波预测落叶松规格材的抗弯性能

张训亚; 殷亚方; 罗彬; 姜笑梅

doi:10.19455/j.mcgy.2010.03.001

“十一五”国家科技支撑计划专栏 | 浏览量 : 0 下载量: 112 CSCD: 15

PDF
导出
分享
收藏
专辑

超声波预测落叶松规格材的抗弯性能
Predicting Bending Performance of Larch Dimensional Lumber by an Ultrasonic Technique
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
2010年24卷第3期页码：1-3
DOI： 10.19455/j.mcgy.2010.03.001

扫描看全文

[1]张训亚,殷亚方,罗彬,姜笑梅.超声波预测落叶松规格材的抗弯性能[J].木材工业,2010,24(03):1-3.

ZHANG Xun-ya, YIN Ya-fang, LUO Bin, et al. Predicting Bending Performance of Larch Dimensional Lumber by an Ultrasonic Technique[J]. China Wood Industry, 2010,24(3):1-3.
[1]张训亚,殷亚方,罗彬,姜笑梅.超声波预测落叶松规格材的抗弯性能[J].木材工业,2010,24(03):1-3. DOI： 10.19455/j.mcgy.2010.03.001.

ZHANG Xun-ya, YIN Ya-fang, LUO Bin, et al. Predicting Bending Performance of Larch Dimensional Lumber by an Ultrasonic Technique[J]. China Wood Industry, 2010,24(3):1-3. DOI： 10.19455/j.mcgy.2010.03.001.

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。

Abstract

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.