Bardet Sandrine, Beauchêne Jacques, Gril Joseph.
2002. Influence of temperature on the transverse behaviour in water-saturated state of tropical wood species.
In : Sustainable utilization of tropical forest resources: Proceedings of the Fourth International Wood Science Symposium, September 2-5, 2002, Serpong, Indonesia. Ed. by W. Dwianto, S. Yusuf, E. Hermiati, L. Suryanegara
Résumé : The influence of temperature on the transverse viscoelastic behaviour of green wood was characterised by the apparent radial modulus (ER) in a quasi-static compression test. The glassy transition temperature of 10 tropical species (basic density between 0.2 and 0.9) varied between 53 and 69°C. The influence of both temperature and strain rate was observed on Bocoa prouacensis (Aubl.). The use of an approximated complex diagram revealed a secondary viscoelastic process occurring in the low temperature range. A multiparabolic model, where each parabolic element was replaced by a generalised Maxwell model with a modified-Gaussian relaxation spectrum, was fitted to the observed behaviour in the time range of 0.01 to 100 sec and temperature of 10 to 90°C.
Mots-clés Agrovoc : bois, propriété rhéologique, Élasticité, propriété mécanique
Classification Agris : K50 - Technologie des produits forestiers
Auteurs et affiliations
- Bardet Sandrine, Laboratoire de mécanique et de génie civil (FRA)
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Beauchêne Jacques, CIRAD-FORET-BOIS (GUF)
ORCID: 0000-0003-4578-3670
- Gril Joseph, UM2 (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/514657/)
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