Revista: | Maderas : ciencia y tecnología |
Base de datos: | |
Número de sistema: | 000541324 |
ISSN: | 0718-221X |
Autores: | Rémond, Romain1 De La Cruz, Mariella2 Aléon, Daniel2 Perré, Patrick3 |
Instituciones: | 1Université de Lorraine, ENSTIB, Epinal. Francia 2Institut Technologique FCBA, Paris. Francia 3Ecole Centrale Paris, LGPM, Malabry. Francia |
Año: | 2013 |
Periodo: | Oct |
Volumen: | 15 |
Número: | 3 |
Paginación: | 269-280 |
País: | Chile |
Idioma: | Inglés |
Resumen en inglés | 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. |
Keyword: | Drying stress, Beech, Oscillating conditions, Mechano-sorptive model, Flying wood |
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