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Anjaneya Prasad Penneru, Krishnan Jayaraman, Debes Bhattacharyya

Viscoelastic behaviour of solid wood under compressive loading

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

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.

Holzforschung, Walter de Gruyter

Print ISSN: 0018-3830
Volume: 60, 05/2006
Pages: 294 - 298

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