Investigation of oscillating climates for wood drying using the flying wood test and loaded beams: need for a new mechano-sorptive model

Abstract : 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.
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Article dans une revue
MADERAS: Ciencia y Tecnología, Universidad del Bío-Bío, 2013, 15 (3), 〈10.4067/S0718-221X2013005000021〉
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01240807
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Soumis le : mercredi 9 décembre 2015 - 15:31:55
Dernière modification le : jeudi 5 avril 2018 - 12:30:09

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Romain Remond, Mariella De La Cruz, Daniel Aléon, Patrick Perre. Investigation of oscillating climates for wood drying using the flying wood test and loaded beams: need for a new mechano-sorptive model. MADERAS: Ciencia y Tecnología, Universidad del Bío-Bío, 2013, 15 (3), 〈10.4067/S0718-221X2013005000021〉. 〈hal-01240807〉

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