Application of weakest-link fracture statistics to fiber-reinforced ceramic-matrix composites

摘要

The strength and reliability of fiber-reinforced ceramic- matrix composites (CMCs) are dependent on whether con- ditions of local or global load sharing prevail. Global load sharing is promoted by a low interfacial sliding stress and is manifested in a zero-tangent modulus at the point of tensile failure along with random fiber failures and extensive fiber pullout.