TENSILE STRENGTH OF C/C COMPOSITES

摘要

Fracture mechanism and model based on it in Carbon-carbon composites are studied. Interfacial strength between reinforcing fiber and matrix is a potential candidate governing the tensile fracture of C/Cs. However, The mechanisms connecting the tensile strength and the factor have not yet been clarified. In the present study, tensile fracture patterns of various C/C composites with changing the interfacial strength were observed in detail, and a fundamental tensile fracture model of C/C composites in accordance with the experimental observations were proposed. The analytical result shows reasonable agreement with the experimental results, and verifies that the fracture mechanism is consistent.