Abstract
The dependence of the amount of checking on shrinkage induced stress level during timber drying is considered. This relationship is investigated by comparing theoretically calculated maximal stress with observed amount of checking in a set of drying tests. Different ways of modelling wood creep behaviour are included. It is found that a correlation exists in all the cases studied, except when creep is described with the traditional equation for mechano-sorptive creep. It is shown that this exception is due to a special mathematical property of the equation. A new mechano-sorptive creep model is thus proposed and briefly investigated. Using this model, a method for predicting the amount of checking in timber drying is developed.
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