Failure models in continuous fiber ceramic composites: Phase 1, Task 1, State of the art survey. Continuous fiber ceramic composites program, Task 2, Supporting technologies
- National Inst. of Standards and Technology, Gaithersburg, MD (United States)
The high toughness of continuous fiber reinforced composites (CFCCs) is due to increasing the thoughness by one or more of the following mechanisms: crack deflection, crack branching, crack bridging, microcracking, or fiber pullout. Most of the toughness, however, is attributed to work required to elastically elongate the bridging fibers and to pull the broken fibers out of the matrix. Understanding of matrix cracking mechanisms is important to the use of CFCCs. This survey concentrates on matrix cracking models established thus far that are based on continuous fiber-reinforced ceramic matrix composites with respect to both matrix crack initiation and matrix crack propagation. A review of experimental results relating material properties to the failure characteristics is included. 75 refs, 4 figs.
- Research Organization:
- National Inst. of Standards and Technology, Gaithersburg, MD (United States); Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AI05-92OR22014; AC05-84OR21400
- OSTI ID:
- 10164134
- Report Number(s):
- DOE/OR/22014--1; ON: DE93016669
- Country of Publication:
- United States
- Language:
- English
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