A New Strength Prediction Method for 2D-C/C Composite Components
Satoshi HANAWA, Masahiro ISHIHARA, Taijyu SHIBATA, Kazuhiro SAWA and Yoshinobu MOTOHASHI
Abstract:The strength prediction method for 2D-C/C composite components is proposed in this paper. The proposed method is based on the combination of competing risk model and FEM stress analysis. In the strength prediction, tensile and compressive fracture to lamina direction, tensile and compressive fracture transverse to lamina direction and shear fracture were introduced as basic fracture modes. In order to investigate the applicability of the proposed method, the fracture test with structural element test specimens was performed, and the result was compared with prediction result by the method. From the comparison, it was shown that the proposed prediction method has a slightly higher but more precise prediction than the other traditional fracture models. As a result of this study, it is concluded that the proposed method was applicable to arbitrary shaped 2D-C/C composite components. Key Words: