THERMAL DEGRADATION OF GOUPIA GLABA (Cupiuba) TIMBER

摘要

The charring rate of timber has been studied in several countries. It is known the results have been obtained in different ways for different species. The purpose of this paper is to study a charring behavior Goupia glaba, cupiuba. The results obtained from structural members are discusses by numerical and experimental means, Two methods proposed in standards currently used to determination of charring rate will be compared with the results obtained in this experimental and theoretical study. The numerically simulated temperatures obtained for the 10 mm depth were slightly lower than those obtained experimentally. Even so, the result obtained can be considered satisfactory considering the difficulties faced in obtaining thermal parameters for charred and partially charred wood. The results of the numerical model were in good agreement with the experimental results for the 20 and 30 mm depths, indicating that the model can be applied to estimate, to a good approximation, the char depth in structural wood members under conditions of fire.