Evaluation of interfacial properties of fiber-reinforced ceramic composites using a mechanical properties microprobe
- Oak Ridge National. Lab., Oak Ridge, TN (United States)
The application of a mechanical properties microprobe to evaluate the interfacial properties of fiber-reinforced ceramic composites is addressed. The stress-displacement relation of the embedded fiber, which is subjected to an axial loading-unloading cycle, is analyzed. The interfacial bonding, Coulomb friction at the debonded interface, Poisson's effect of the loaded fiber, and residual stresses are included in the analysis, and closed-form analytical solutions are obtained. Based on the analytical solutions, a methodology is established to extract the interfacial properties from experimental stress-displacement curves. The roles of interfacial bonding, Poisson's effect, and residual axial stresses on the residual fiber displacement after complete unloading are also addressed in the presence study.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5429147
- Journal Information:
- Journal of the American Ceramic Society; (United States), Vol. 76:12; ISSN 0002-7820
- Country of Publication:
- United States
- Language:
- English
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