基于微钻阻力的落叶松弹性模量快速检测  

Research on Rapid Detection of Larch Wood Modulus of Elasticity Based on Micro-Drilling Resistance

作　　者：孙燕良[1] 张厚江[1] 朱磊[1] 王喜平[2] 闫海成[1] 廖春晖[1] 

机构地区：[1]北京林业大学工学院,北京100083 [2]美国农业部林产品实验室,麦迪逊wi537262398

出　　处：《湖北农业科学》2012年第11期2348-2350,共3页Hubei Agricultural Sciences

基　　金：北京市公益应用项目(Z090506016609002)

摘　　要：以落叶松(Larix gmelinii)新鲜材、古建筑旧材为试验材料,运用微钻阻力仪对其内部的微钻阻力进行了快速检测,分析微钻阻力与两种落叶松材弹性模量之间的相关性及利用微钻阻力快速评估木材弹性模量的可行性。结果表明,对于新鲜落叶松材料,其微钻阻力检测值与弹性模量呈显著线性相关,可以利用微钻阻力较好地评估其弹性模量,且二者相关系数为0.831 9;对于古建筑的落叶松材料,利用微钻阻力快速检测弹性模量的精度则相对较差,二者相关系数为0.341 5,需结合其他检测指标综合进行判断。Aimed at finding the correlation between the micro-drilling resistance and modulus of elasticity of two larch wood and the feasibility to rapid assessment of the modulus of elasticity,the micro-drilling resistance meter was adopted to detect the internal situation of new and old larch wood.The results showed that the micro-drilling resistance detection value and elastic modulus presented a significant linear correlation for general larch materials.The micro-drilling could be used to better assess the modulus of elasticity,and the correlation coefficient were 0.831 9 between them.However,for the old larch,the precision of using micro-drilling resistance for rapid detection of the elastic modulus were relatively poor with the correlation coefficient of 0.341 5,it should combine with other testing indicators to get the reliable data.

关 键 词：落叶松(Larix gmelinii) 微钻阻力 弹性模量 快速检测 

分 类 号：S781.2[农业科学—木材科学与技术]