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Image-based Numerical Modeling of Self-Healing in a Ceramic-Matrix Minicomposite

Abstract : Self-healing is an important phenomenon in new-generation refractory ceramic-matrix composites, obtained by the oxidation of a glass-forming phase in the composite. The dynamics of oxygen diffusion, glass formation and flow are the basic ingredients of a self-healing model that has been developed here in 2D in a transverse crack of a minicomposite. The presented model can work on a realistic image of the material section and is able to simulate healing and quantify the exposure of the material to oxygen, a prerequisite for its lifetime prediction. Crack reopening events are handled satisfactorily, and secondary healing can be simulated. This papers describes and discusses a typical case in order to show the model potentialities.
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Submitted on : Friday, May 3, 2019 - 1:02:49 PM
Last modification on : Friday, July 8, 2022 - 10:09:54 AM


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Grégory Perrot, Guillaume Couégnat, Mario Ricchiuto, Gérard Vignoles. Image-based Numerical Modeling of Self-Healing in a Ceramic-Matrix Minicomposite. Ceramics, MDPI, 2019, 2 (2), pp.308-326. ⟨10.3390/ceramics2020026⟩. ⟨hal-02118786⟩



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