Effects of fiber coating properties on the crack deflection and penetration in fiber-reinforced ceramic composites

摘要

A finite element technique is used to study the effects of coating properties on the deflection and penetration of cracks which terminate perpendicular to the fiber-coating or coating-matrix interfaces. Four types of coatings are considered for the SCS6 (fiber)-Zircon (matrix) composites. The hoop and Tangential stresses and the energy release rates are analyzed for the various coatings. The effects of the Thickness of coatings on these parameters are also studied.