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INVESTIGATION OF OSCILLATING CLIMATES FOR WOOD DRYING USING THE FLYING WOOD TEST AND LOADED BEAMS: NEED FOR A NEW MECHANO-SORPTIVE MODEL.

Authors :
Rémond, Romain
De La Cruz, Mariella
Aléon, Daniel
Perré, Patrick
Source :
Maderas: Ciencia y Tecnología. 2013, Vol. 15 Issue 3, p269-280. 12p.
Publication Year :
2013

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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
07173644
Volume :
15
Issue :
3
Database :
Academic Search Index
Journal :
Maderas: Ciencia y Tecnología
Publication Type :
Academic Journal
Accession number :
92046701
Full Text :
https://doi.org/10.4067/S0718-221X2013005000021