PERROT, Grégory; COUÉGNAT, Guillaume; RICCHIUTO, Mario; VIGNOLES, Gérard

doi:10.3390/ceramics2020026

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PERROT, Grégory
Laboratoire des Composites Thermostructuraux [LCTS]

COUÉGNAT, Guillaume
Laboratoire des Composites Thermostructuraux [LCTS]

RICCHIUTO, Mario
Certified Adaptive discRete moDels for robust simulAtions of CoMplex flOws with Moving fronts [CARDAMOM]

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Article de revue

Ce document a été publié dans

Ceramics. 2019-05-02, vol. 2, n° 2, p. 308-326

MDPI

Résumé en anglais

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.< Réduire

Mots clés en anglais

Image-based modelling

Self-healing

Ceramic-matrix composites

DOI

http://dx.doi.org/10.3390/ceramics2020026

Project ANR

Composites Auto-Cicatrisants Virtuels pour la Propulsion Aéronautique - ANR-17-CE08-0030

Origine

Importé de hal

Unités de recherche

Institut de Mathématiques de Bordeaux (IMB) - UMR 5251