林业科学 ›› 2007, Vol. 43 ›› Issue (04): 137-140.doi: 10.11707/j.1001-7488.20070425
• 研究简报 •
费本华 赵勇 覃道春 杨忠 侯祝强 赵荣军
Fei Benhua,Zhao Yong,Qin Daochun,Yang Zhong,Hou Zhuqiang,Zhao Rongjun
This paper initially applied the non-destructive evaluation-computerized tomography and the fractal theory to research the feature of wood fracture. Pinus elliottii, Populus×canadensis cv. ‘I-214’ and Larix gmelinii were choosed as samples. The author established the logarithm-logarithm relationship between the section area of wood fracture and its location, then defined the slope-DL regressed by the two factors above as the section variation fractal dimension of wood fracture. The results showed: the non-destructive evaluation-computerized tomography can effectively analysis the feature of wood fracture. All the samples exist an marked linear relationship between the section area of fracture and its location, DL is a new effective parameter to quantitatively characterize the feature of wood fracture, the delta of -2 described the complexity of fracture surface of wood. Due to the anisotropy and variation of wood properties, DL is the statistically fractal dimension. All the results are tested by the statistic software——SARS, there exists remarkable difference between the DL from different species. The average fractal dimension of fracture surface of Pinus elliottii is 2.25, Populus×canadensis cv. ‘I-214’ is 2.46, Larix gmelinii is 2.65.
fractal dimension of section area
费本华 赵勇 覃道春 杨忠 侯祝强 赵荣军. 应用CT技术研究木材断口形态特征[J]. 林业科学, 2007, 43(04): 137-140.
Fei Benhua;Zhao Yong;Qin Daochun;Yang Zhong;Hou Zhuqiang;Zhao Rongjun. Applying Computerized Tomography(CT) to Study the Feature of Wood Fracture[J]. Scientia Silvae Sinicae, 2007, 43(04): 137-140.
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