Investigation of oscillating climates for wood drying using the flying wood test and loaded beams: need for a new mechano-sorptive model
| Autor: | Patrick Perré, Mariella De La Cruz, Romain Rémond, Daniel Aléon |
|---|---|
| Přispěvatelé: | Laboratoire d'Etude et de Recherche sur le Matériau Bois (LERMAB), Université de Lorraine (UL), Institut Technologique Forêt Cellulose Bois-construction Ameublement (FCBA), Laboratoire de Génie des Procédés et Matériaux - EA 4038 (LGPM), CentraleSupélec |
| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
Work (thermodynamics) oscillating conditions Materials science Bending (metalworking) Kiln flying wood Materials Science (miscellaneous) 01 natural sciences Industrial and Manufacturing Engineering 010608 biotechnology Chemical Engineering (miscellaneous) Composite material Water content 040101 forestry Oscillation Simulation modeling Drying stress Forestry [PHYS.MECA]Physics [physics]/Mechanics [physics] 04 agricultural and veterinary sciences Wood drying Creep [PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph] 0401 agriculture forestry and fisheries beech mechano-sorptive model |
| Zdroj: | Maderas. Ciencia y tecnología, Volume: 15, Issue: 3, Pages: 269-280, Published: 27 JUN 2013 Maderas. Ciencia y tecnología v.15 n.3 2013 SciELO Chile CONICYT Chile instacron:CONICYT MADERAS: Ciencia y Tecnología MADERAS: Ciencia y Tecnología, Universidad del Bío-Bío, 2013, 15 (3), ⟨10.4067/S0718-221X2013005000021⟩ |
| ISSN: | 0718-221X 0717-3644 |
| DOI: | 10.4067/s0718-221x2013005000021 |
| Popis: | International audience; In this work, the effects of moisture content variations produced by oscillating drying conditions have been studied by means of non-symmetrical drying (flying wood) and loaded drying (3-point bending test). The oscillating conditions are intended to produce a mechano-sorptive creep that is able to reduce drying stresses. However, our experimental data seem to prove that the activation of the mechano-sorptive creep by oscillations of the moisture content is very limited. Besides, the simulations showed that noisy conditions due to the kiln regulation already activate the mechano-sorptive creep, even for non-oscillating conditions, and could confuse the results. Contrary to the experimental observations, the implementation of classical mechano-sorptive models in the drying simulation model is far too optimistic, which means that these models are not suitable when the material is submitted to numerous oscillations. |
| Databáze: | OpenAIRE |
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