Research Article
Thermal Mismatch Effect and High-Temperature Tensile Performance Simulation of Hybrid CMC and Superalloy Bolted Joint by Progressive Damage Analysis
Table 2
Mechanical and thermal properties of superalloy plate and bolt/nut.
| Property | Temperature (°C) | GH4169 | GH4141 |
| Young’s moduli (GPa) | 20 | 204 | 221 | 300 | 181 | 216 | 400 | 176 | 210 | 500 | 160 | 205 | 550 | 160 | 200 | 600 | 150 | 195 | 650 | 146 | 188 | 700 | 141 | 182 |
| Poisson’s ratio | 20 | 0.3 | 0.3 | 100 | 0.3 | 0.3 | 200 | 0.3 | 0.3 | 300 | 0.3 | 0.3 | 400 | 0.31 | 0.3 | 500 | 0.32 | 0.3 | 600 | 0.32 | 0.3 | 700 | 0.33 | 0.3 |
| Coefficient of thermal expansion (10-6·°C-1) | 20-100 | 11.8 | 10.5 | 20-200 | 13 | 11.7 | 20-300 | 13.5 | 12.2 | 20-400 | 14.1 | 12.8 | 20-500 | 14.4 | 13.1 | 20-600 | 14.8 | 13.5 | 20-700 | 15.4 | 14.2 | 20-800 | 17 | 15.0 |
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