Crack-Fiber Interaction in SiC Fiber-Reinforced Glass Matrix Composite

Abstract

Interaction between fiber and glass matrix has been observed during crack bridging process in a continuous fiber-reinforced glass matrix composite. The crack growth of the matrix was strongly affected by the presence of the fiber. Crack bowing was clearly recognized when the crack front approached the fiber. Complex stress field caused the rough surface of the matrix crack around the fiber instead of smooth surface as it appears in the general fracture of the glass matrix. The result also indicated a possibility of toughness increase by the crack bowing process.