DYNAMIC FRACTURE CHARACTERIZATION OF CERAMIC MATRIX COMPOSITES
- 1 September 1988
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 49 (C3) , C3-223
- https://doi.org/10.1051/jphyscol:1988332
Abstract
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 observedKeywords
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