杨木径向压缩的黏弹性行为

doi:10.11707/j.1001-7488.20110923

Scientia Silvae Sinicae ›› 2011, Vol. 47 ›› Issue (9): 135-139.doi: 10.11707/j.1001-7488.20110923

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Viscoelastic Behavior of Poplar under Radical Compression

Zhang Xiaomin^1,2, Sun Zhengjun¹, Wang Ximing², Shang Lili²

1. International Center for Bamboo and Rattan Beijing 100102;2. College of Material Science and Art Design, Inner Mongolia Agricultural University Huhhot 010019

Received:2009-11-02 Revised:2010-01-22 Online:2011-09-25 Published:2011-09-25

Abstract

Abstract:

A study on the different thickness of poplar ( Populus nigra ) veneer. The effects of the different strain levels,temperature,moisture content(MC) and the adhesive on stress relaxation of poplar veneer were explored. The results showed that: (25±2)℃, under the same deformation, the amount of stress relaxation in proportional to moisture content, 0% moisture content, as the temperature increases, the amount of stress relaxation increase slightly; 0% moisture content,under the same deformation, poplar veneer with adhesive have a greater amount of stress relaxation. And the stress relaxation of poplar veneer behavior can be used by the Maxwell model and spring model composed of three-element to simulate.

Key words: poplar veneer, stress relaxation, microstructure, three-element model, viscoelastic

CLC Number:

S781.29

Zhang Xiaomin;Sun Zhengjun;Wang Ximing;Shang Lili. Viscoelastic Behavior of Poplar under Radical Compression[J]. Scientia Silvae Sinicae, 2011, 47(9): 135-139.

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Viscoelastic Behavior of Poplar under Radical Compression

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