学术
摘 要:
以毛竹为对象，研究了在不同应力水平及不同温度、含水率下竹材横纹压缩的蠕变特性。实验结果表明，竹材横纹压缩蠕变组分与含水率、温度、应力水平密切相关；当压应力在屈服极限以下时，竹材横纹压缩蠕变的三种组分总量均与压应力、温度和含水率成正比，但温度和含水率的升高会使弹性组分的比量下降、粘弹性和粘性组分的比量增大。[著者文摘]
文章出处:
《竹子研究汇刊》-2007年26卷4期 -45-49页
栏目信息:
A Study on the Rheological Behavior of Bamboo under Transverse Heat-Compression
Tu Daowu, Shao Zhuoping, Xu Bin （Department of Forest Products Industry,Anhui Agricultural University,Hefei 230036,Anhui,China）
Abstract:
This paper studied the rheological characteristics of Moso bamboo （Phyllostachys heterocycla var. pubescens） in transverse compression under different levels of temperature ,moisture and stress. The results showed that the creep of bamboo was highly correlated with temperature, moisture content and stress level. When compressed stress is under yield stress, three components of creep （elasticity, visco-elastcity, viscosity） were proportional to compressed stress, temperature and moisture content. But the increase of temperature and moisture content would decrease the elasticity component proportion and increase the visco-elasticity and the viscosity component proportion.[著者文摘]
Key words:
Moso bamboo; Heat-compression; Creep behavior
基金资助:
国家自然科学基金（30571452）和安徽省教育厅青年教师科研资助项目（2005JQ1053）资助
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