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