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单板条层积材密度梯度的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2012年04期
Page:
115-118
Column:
单板条层积材力学性质预测研究专栏
publishdate:
2012-07-31

Article Info:/Info

Title:
Research on density gradient of parallel strand lumber
Author(s):
WANG ShijianNA BinGAO JingLU Xiaoning*
College of Wood Science and Technology, Nanjing Forestry University, Nanjing 210037,China
Keywords:
poplar veneer parallel strand lumber(PSL) density distribution density gradient
Classification number :
TS612.1
DOI:
10.3969/j.jssn.1000-2006.2012.04.024
Document Code:
A
Abstract:
Statistical analysis on the density distribution of each layer was made based on the PSL(parallel strand lumber)pressed without glue. The result indicated that the density of each veneer strip after pressed met the normal distribution. The predicted value calculated by the model would be compared with statistical distribution range. When the pressure is lower than 5 MPa, the calculated value meets well with statistical distribution range. But when the pressure is 5 MPa, there is a great difference between them. And finally the density gradient model was confirmed. The result of face density scanning indicated that the density gradient model of PSL is accurate.

References

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Last Update: 2012-07-07