13th International Conference on Fracture June 16–21, 2013, Beijing, China -5- Figure 6. Tangential strains for radius comprised between 2R and 3R Figure 7. Tangential strains for radius comprised between 6R and 7R These results can highlight few points: - The tangential strains are, in the whole, in a compression increasing during drying process. - At a moisture content level, the tangential strain seems increasing at the sample center - An heterogeneity can be observed around the crack initiation vicinity - Around 18% of moisture content, we can observe a jump of tangential strain valued near the radius 1R and 7R near the sample edge which can be explain by the crack growth initiation. 4. Finite element approach The simulation of the drying process in free disk requests the development of a specific model
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