Abstract
The total dissipation energy accompanying fracture of fiber-reinforced ceramics composites was formulated based on energetics of microfracture processes (viz. interfacial debonding and fiber pullout processes) and also Oh and Finnie's fracture location theory. The theory shows us the total dissipation energy of the composites strongly depends on the shape and scale parameters of Weibull distribution of fiber strength and also fiber/matrix interfacial frictional stress. The theoretical prediction gives a close approximation of the experimental fracture energy values of a C/C composite heat-treated at different temperatures.
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