基于应力波和微钻阻力的古建筑木构件材料力学性能检测  

Determination of Mechanical Properties of Ancient Architectural Timber Based on Stress Wave and Micro-drilling Resistance

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

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

出　　处：《东北林业大学学报》2011年第10期81-83,共3页Journal of Northeast Forestry University

基　　金：北京市公益项目(Z090506016609002)

摘　　要：以落叶松古建筑木构件材料为试验对象,定量试验对比了应力波技术与微钻阻力技术对材料力学性能的检测效果;并综合两种技术,探索了较单个技术检测精度更高的检测方法。试验结果表明,应力波检测方法在推算木构件材料抗弯弹性模量、抗弯强度方面的准确度要略高于微钻阻力检测方法,而在推算抗压强度方面,则微钻阻力检测方法的准确度略高;结合了应力波和微钻阻力两种方法的波阻模量检测方法推算木构件力学性能有比单一方法更高的准确度。Larch timber from an ancient arehiteetttre was selected as the experimental object, and the mechanics performances of the larch timber were detected by stress wave and micro-drilling resistance techniques. The testing effects of the two methods were compared. And a high-precision detection method was explored by comparing the two methods comprehensively. Results show that the accuracy of the stress wave testing method is higher than that of the micro-drilling resistance testing method in modulus of elasticity （MOE） and modulus of rupture （MOR）, while a slightly higher accuracy in compressive strength is obtained by the micro-drilling resistance testing method. Then, a new method, modulus of stress-resistograph testing method, is given by combining the two methods, which has a higher accuracy than either of the above two methods.

关 键 词：古建筑木构件 材料力学性能 应力波 微钻阻力 准确度 波阻模量 

分 类 号：S781.2[农业科学—木材科学与技术]