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Article Dans Une Revue Journal of the European Ceramic Society Année : 2019

Modeling the thermal shock induced cracking in ceramics

Résumé

Prediction of surface cracking in ceramics due to quenching is performed numerically using either the coupled criterion or a cohesive zone model. Under such a thermal shock, a network of short cracks with minimal spacing between them initiate and propagate until some of them stop while the others continue propagating. The numerical implementation consists of a periodic array of cracks modeled by a representative volume element. It allows crack initiation, simultaneous propagation and period doubling to be predicted. The investigation of the crack period doubling allows a precise determination of the optimal crack spacing, which decreases with an increasing thermal shock amplitude. The predicted crack spacing results are in agreement with experimental measurements.
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Dates et versions

hal-02418652 , version 1 (25-03-2021)

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Luiz Felipe Faria Ricardo, Dominique Leguillon, Guillaume Parry, Aurélien Doitrand. Modeling the thermal shock induced cracking in ceramics. Journal of the European Ceramic Society, 2019, 40 (4), pp.1513-1521. ⟨10.1016/j.jeurceramsoc.2019.11.071⟩. ⟨hal-02418652⟩
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