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环境温湿度对竹材增强LVL力学性能的影响(PDF)

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

Issue:
2006年06期
Page:
37-40
Column:
研究论文
publishdate:
2006-06-20

Article Info:/Info

Title:
Effects of Temperature and Humidity of Environment on Mechanical Properties of Bamboo-wood Composites LVL
Article ID:
1000-2006(2006)06-0037-04
Author(s):
ZHU Yi-xin1 ZHANG Xin-an12 GUAN Ming-jie1
1. Bamboo Engineering Research Centre Nanjing Forestry University, Nanjing 210037, China; 2. Forest Products Center, The University of Tennessee, Knoxville TN 37996 USA
Keywords:
Bamboo Poplar Laminated veneer lumber (LVL) Mechanical properties Temperature and humidity
Classification number :
S781
DOI:
10.3969/j.jssn.1000-2006.2006.06.008
Document Code:
A
Abstract:
Bamboo-wood composites laminated veneer lumber (LVL) was treated under different temperature and humidity conditions. The mechanical properties of bamboo-wood composites LVL after the treatment were discussed. The results showed: (1) After the treatment of high temperature and humidity, all the mechanical properties of the LVL decreased obviously, in which, MOE decreased 30.70% in average, MOR decreased 38.3% in average, toughness decreased 11.7% in average. (2) After the treatment of low temperature, the MOE and MOR of bamboo-wood composites LVL revealed the trends of slight increase, the average increase rate of MOE was 2.5%, the average increase rate of MOR was 5.4%, the average decrease rate of toughness was 37.9%. (3) During the treatment of fluctuation from high temperature to low temperature, the MOE and MOR of bamboo-wood composites LVL were in the state of fluctuation, the increase rate or decrease rate of MOE was less than 5%, the increase rate or decrease rate of MOR was less than 10%, toughness displayed the trend of decrease, the decrease rate was 18.7% in average.

References

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Last Update: 2013-05-20