A finite fracture model for the analysis of multi-cracking in woven ceramic matrix composites
Langue
EN
Article de revue
Ce document a été publié dans
Composites Part B: Engineering. 2018-04-01, vol. 139, p. 75-83
Résumé en anglais
A finite fracture approach based on the Coupled Criterion is used to analyze multi-cracking in a woven ceramic matrix composite. In-situ micrographic observations obtained during tensile and bending tests performed on ...Lire la suite >
A finite fracture approach based on the Coupled Criterion is used to analyze multi-cracking in a woven ceramic matrix composite. In-situ micrographic observations obtained during tensile and bending tests performed on chemical vapor infiltrated SiC/SiC samples are utilized to identify cracking mechanisms. A two dimensional finite element model is generated to approximate the actual specimen section geometry including matrix, fiber tows and porosity. Numerical simulations are carried out with a dedicated algorithm to simulate nucleation and propagation of cracks. Comparing the simulation results with experimental ones shows that the model captures the main cracking features.< Réduire
Mots clés en anglais
Coupled criterion
Finite element analysis
Ceramic matrix composites
Unités de recherche