521 C/C複合材料の高温酸化雰囲気における強度・弾性率の評価(OS7-2 複合材II)(OS7 微視構造を有する材料の力学)  [in Japanese] 521 Evaluations of Strength and Stiffness of C/C Composites under high temperature oxidation conditions  [in Japanese]

Oxidation tests under loading were carried out to clarify the effect of loading on the oxidation mechanism. And tensile tests were carried out under various conditions to understand the degradation of stiffness and strength. To predict the stiffness degradation, the analytical model based on both Shear-Lag Model and Diffusion Model was proposed. Analytical prediction was compared to experimental results to estimate the effectiveness of proposed model.