人工机械心瓣的损伤容限分析

张建辉, 邢兴, 阮叶鹏, 孙振国

Damage Tolerance Analysis of Artificial Mechanical Heart Valve

ZHANG Jianhui, XING Xing, RUAN Yepeng, SUN Zhenguo

表1 人工心瓣瓣片模型材料参数

Table 1 Material parameters of the valve leaflet model

Materials Elastic modulus/GPa Poisson's ratio Density/g·cm-3 Coefficient of thermal expansion/m·k-1 Pure pyrolytic carbon 30 0.21 2.2 5.5×10-6 Graphite 12 0.15 1.8 6.5×10-6