Viscoelastic behaviour of solid wood under compressive loading

Anjaneya Prasad Penneru; Krishnan Jayaraman; Debes Bhattacharyya

doi:10.1515/HF.2006.047

Article

Viscoelastic behaviour of solid wood under compressive loading

Anjaneya Prasad Penneru , Krishnan Jayaraman and Debes Bhattacharyya

Published/Copyright: May 3, 2006

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From the journal Volume 60 Issue 3

Abstract

To understand the mechanism of bulk wood forming, compressive stress relaxation experiments were performed on radiata pine (Pinus radiata D. Don) specimens with various moisture contents at a temperature of 200°C. The results aided in understanding the time-dependent viscoelastic behaviour with respect to springback and microstructural changes. This study clearly demonstrates the commercial feasibility of value-adding applications such as pattern forming on wood panels using a relatively simple, quick and inexpensive procedure. The experimental data were characterised by a three-component model with a spring and a Maxwell element in parallel, which showed very good agreement under different forming conditions.

Keywords: compressive relaxation; microstructure; solid wood forming; three-component model; viscoelasticity

Corresponding author. Centre for Advanced Composite Materials, Department of Mechanical Engineering, University of Auckland, Private Bag 92019, Auckland, New Zealand Tel.: +64-9-3737599 ext. 88149, Fax: +64-9-3737479 d.bhattacharyya@auckland.ac.nz

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Published Online: 2006-05-03

Published in Print: 2006-05-01

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Articles in the same Issue

https://doi.org/10.1515/HF.2006.047

Keywords for this article

compressive relaxation; microstructure; solid wood forming; three-component model; viscoelasticity