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

Authors

  • Romain Rémond Université de Lorraine
  • Mariella De La Cruz Institut Technologique FCBA
  • Daniel Aléon Institut Technologique FCBA
  • Patrick Perré Ecole Centrale Paris

Keywords:

drying stress, beech, oscillating conditions, mechano-sorptive model, flying wood

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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Author Biographies

Romain Rémond, Université de Lorraine

Université de Lorraine, LERMAB, ENSTIB, 27 rue Philippe Séguin,BP1041, F-88051 Epinal cedex 9– France

Mariella De La Cruz, Institut Technologique FCBA

Institut Technologique FCBA, 10 av. de St Mandé, 75 012 Paris Cedex– France

Daniel Aléon, Institut Technologique FCBA

Institut Technologique FCBA, 10 av. de St Mandé, 75 012 Paris Cedex– France

Patrick Perré, Ecole Centrale Paris

Ecole Centrale Paris, LGPM, Grande Voie des Vignes, F-92 290 Châtenay-Malabry– France

How to Cite

Rémond, R., De La Cruz, M., Aléon, D., & Perré, P. (2014). 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, 15(3), 269–280. Retrieved from https://revistas.ubiobio.cl/index.php/MCT/article/view/1293

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