鱼鳞云杉微切片拉伸破坏的细观试验与应变场分析
Meso-scale experimental Investigation and strain fields analysis of tensile tests on microtomed slices of Picea jezoensis Carr. Var. microsperma sample
在装有微力学试验机的环境扫描电子显微镜内完成鱼鳞云杉微切片的纵向拉伸试验，在加载的同时,开始录像，摄下试件从开始加载到完全破坏的全过程,再借助于数字散斑相关技术，计算出一定载荷下任意指定区域的位移场和应变场。分析了不均值的细观结构对木材力学性质的影响。
In this study, tensile tests parallel to the grain were carried out on LV mode in an Environmental Scanning Electron Microscope (ESEM) chamber on microtomed slices of Picea jezoensis Carr. Var. microsperma sample. The digital video files(AVI) and a group of TIFF files were recorded for dynamic experiments performed with ESEM while load-displacement diagrams were described, simultaneously. Displacement and strain fields for different load levels under proportion limit were obtained from Digital Image Correlation Method (DICM) . Heterogeneous meso-scale structural influence on mechanical properties of wood were analysed.
巩翠芝、刘一星
材料科学生物科学现状、生物科学发展生物科学研究方法、生物科学研究技术
林业工程1环境扫描电子显微镜2位移场3应变场4原位拉伸实验5
Forestry engingeering 1Environmental Scanning Electron Microscope (ESEM)2fields of displacement 3fields of strain 4In situ tensile tests 5
巩翠芝,刘一星.鱼鳞云杉微切片拉伸破坏的细观试验与应变场分析[EB/OL].(2011-01-11)[2025-08-19].http://www.paper.edu.cn/releasepaper/content/201101-471.点此复制
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