| 超声波预测落叶松规格材的抗弯性能 |
| |
| 引用本文： | 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(3). |
| |
| 作者姓名： | 张训亚 殷亚方 罗彬 姜笑梅 |
| |
| 作者单位： | 中国林科院木材工业研究所,国家林业局木材科学与技术重点实验室,北京,100091 |
| |
| 基金项目： | “十一五”国家科技支撑计划项目(2006BAD18B07) |
| |
| 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。
|
| 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 |
Predicting Bending Performance of Larch Dimensional Lumber by an Ultrasonic Technique |
| |
| ZHANG Xun-ya,YIN Ya-fang,LUO Bin,JIANG Xiao-mei.Predicting Bending Performance of Larch Dimensional Lumber by an Ultrasonic Technique[J].China Wood Industry,2010,24(3). |
| |
| Authors: | ZHANG Xun-ya YIN Ya-fang LUO Bin JIANG Xiao-mei |
| |
| Institution: | Research Institute of Wood Industry/a>;Chinese Academy of Forestry/a>;Key Lab of State Forestry Administration/a>;Beijing 100091/a>;China |
| |
| 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 wa... |
| |
| Keywords: | non-destructive testing ultrasonic method dimensional lumber dynamic modulus of elasticity modulus of elasticity modulus of rupture |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
