Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Majka J. 2004. STRESS DEVELOPMENT IN DEPENDENCE OF THE WOOD DRYING RATE, EJPAU 7(1), #04.
Available Online: http://www.ejpau.media.pl/volume7/issue1/wood/abs-04.html

ABSTRACT

The study investigated deformations, stresses and the character of changes induced by the non-free shrinkage of beech timber specimens (Fagus sylvatica L.) in the radial direction, in the conditions of varied drying intensity. During the experiments, the program of intense drying (T=60°C, EMC=10%) and the program of moderate drying (T=40°C, EMC=15%) have been taken into consideration, and the values of the accepted timber shrinkage have been differentiated. The varied efficiency of the mechanical restraint of the timber specimens deformations has been obtained due to the use of dynamometers of various characteristics. The research results prove the relationship between the values of durable deformation and the values of accepted shrinkage

Key words: shrinkage, drying, drying gradient, drying stress, deformations, timber..

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