DYNAMIC FRACTURE CHARACTERIZATION OF CERAMIC MATRIX COMPOSITES

K. Yang , A. Kobayashi , A. Emery

A new hybrid experimental-numerical procedure was used to characterize the dynamic fracture of TiB2-particulate/SiC-matrix and Sicw/A12O3-matrix composites at room temperature and 1200°C. The dynamic fracture initiation toughness, KId, was found to be greater than the corresponding static fracture tousghness, KIC and decreased at 1200°C. The dynamic fracture responses of the two ceramic matrix composites were characterized by the dynamic stress intensity factor (SIF) versus crack velocity relations . Small differences between the dynamic fracture responses at room temperature and at 1200°C was observed.

Domaines: Articles anciens

K. Yang, A. Kobayashi, A. Emery. DYNAMIC FRACTURE CHARACTERIZATION OF CERAMIC MATRIX COMPOSITES. Journal de Physique Colloques, 1988, 49 (C3), pp.C3-223-C3-230. ⟨10.1051/jphyscol:1988332⟩. ⟨jpa-00227755⟩