Mechanical behavior of fiber-reinforced ceramic-matrix composites
A detailed study of the matrix crack distribution and frictional heating phenomena in fiber-reinforced ceramic composites was undertaken. The distribution of matrix cracks in an uniaxial ceramic composite was examined to determine how the matrix strength distribution influences the distribution in matrix cracks. The analysis shows that matrix strength statistics have a significant effect on the distribution of matrix cracks in an uniaxial composite loaded in tension and that a large variance is to be expected in the crack spacing distribution even when the matrix strength is relatively homogeneous. Frictional heating in a unidirectionally fiber-reinforced ceramic composite is strongly dependent upon loading frequency and mean crack spacing. A mechanism of internal heating which involves the frictional slip of fibers within debonded slip zones is proposed.
- Research Organization:
- Michigan Univ., Ann Arbor, MI (United States)
- OSTI ID:
- 7017990
- Country of Publication:
- United States
- Language:
- English
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