Fatigue crack growth rate (FCGR) behavior of nicalon/SiC composites
- Univ. of Tennessee, Knoxville, TN (United States); and others
The objective is to develop a fundamental understanding of fatigue crack growth phenomenon in Nicalon/SiC composites. Ultrasonic measurements were continued on the Nicalon/SiC composite specimens to correlate elastic moduli with percentage porosity in the in-plane as well as through-thickness directions. A micromechanics model based on periodic microstructure was developed to predict the elastic stiffness constants of the Nicalon/SiC composites. The predicted values were in good agreement with the experimental results.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- OSTI ID:
- 114939
- Report Number(s):
- DOE/ER--0313/17; ON: DE95013663
- Country of Publication:
- United States
- Language:
- English
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