SiC纤维增强钛基复合材料残余应力的数值模拟

张志超, 王玉敏, 李玉芳, 柏春光

Numerical Simulation on Residual Stress of SiC Fiber Reinforced Titanium Matrix Composite

ZHANG Zhichao, WANG Yumin, LI Yufang, BAI Chunguang

表2 SiC纤维材料性能[11]

Table 2 Material properties of SiC fiber

Temperature/℃ 25 200 400 700 900 CTE α/(10-6℃-1) 3.53 3.62 3.87 4.36 4.59 Young's modulus E/GPa 400(all temp.) Poisson ratio ν 0.5(all temp.) Density ρ(kgm-3) 2550(all temp.) Thermal conductivity (kgmm/(sK)) 0.49(all temp.) Specific heat(mm2/(s2K)) 680000(all temp.)