林业工程学报2016,Vol.1Issue(6):1-9,9.DOI:10.13360/j.issn.2096-1359.2016.06.001
木质材料无损检测的应用与研究进展
Applications and research development of nondestructive testing of wood based materials
摘要
Abstract
Evaluation of wood based materials through nondestructive testing ( NDT) methods has been used successfully for several decades. The NDT methods are fast, convenient and time⁃saving compared with traditional testing methods. There are two main aspects in NDT used for wood based materials. One is the detecting of internal defects by NDT, and the other one is the examining of mechanical properties using NDT. The NDT methods include stress wave, machine stress deflection, vibration, micro⁃drilling, rays, radar, etc. This paper generalizes the current common NDT methods of wood based materials for determining internal defects and mechanical properties in terms of detection principle and appli⁃cations, as well as the research development of the NDT on wood and wood composite panels. In the NDT technologies, the evaluation of wood and standing trees has developed rapidly, and the advanced testing equipment for stress classifica⁃tion of lumber and veneer has been widely used in developed countries. There is a need for more practical applications of NDT on detecting internal defects of ancient wood structural members and standing trees with higher accuracy and effi⁃ciency. Although the research on NDT technology of internal defects of wood composite panels has been developed well during the last century and has been applied successfully currently, the research on NDT technology for mechanical prop⁃erties of wood composite panels has been gradually increased in the recent years, but with limited practical applications. The future research goal should continually improve the detection accuracy and efficiency. It is suggested that the further work of NDT should persist in the fundamental research and technical implementation.关键词
木质材料/人造板/无损检测/内部缺陷/力学性能Key words
wood based materials/wood composite panels/nondestructive testing/internal defects/mechanical properties分类
农业科技引用本文复制引用
张厚江,管成,文剑..木质材料无损检测的应用与研究进展[J].林业工程学报,2016,1(6):1-9,9.基金项目
国家自然科学基金项目(31328005);林业公益性行业科研专项(201304512);引进国际先进林业科学技术项目(2008-4-69);北京市科学计划公益应用类项目( Z090506016609002)。 ()