Analyses of slice compression tests for aligned ceramic matrix composites—II. Type II boundary condition

Abstract

Slice compression tests performed on aligned ceramic matrix composites have been analyzed. A composite cylinder has been adopted to model the composite. Analytical solutions have previously been obtained using Type I boundary condition, in which the outer cylindrical surface of the composite cylinder is assumed to be free. This boundary condition represents a lower bound constraint for the composite cylinder during interfacial debonding. An upper bound constraint, i.e. Type II boundary condition, is adopted in the present study to reanalyze slice compression tests. Limitations exist for Type I and II boundary conditions, and for the existing methodology in evaluating interfacial properties. Hence, a more realistic constraint, i.e. Type III boundary condition, and alternate methodology are also proposed.