A Modified Walker Model Dealing with Mean Stress Effect in Fatigue Life Prediction for Aeroengine Disks

Table 1

Material properties and parameters for mean stress models.

Material		Temperature; °C	Ultimate; , MPa	Basquin		Walker	Modified Walker
				, MPa
FGH4095	[34]	500	1490	7634	−0.2077	0.5784	4.9349	−1.4204
		600	1480	7422	−0.2065	0.4907	6.5782	−1.9737
GH4169	[34]	500	1230	5187	−0.1729	0.6772	9.5177	−2.8557
		650	1170	2654	−0.1228	0.5442	19.0449	−6.0689
FGH4096	[34]	550	1450	4519	−0.1546	0.6465	2.6067	−0.6894
TC11	[35]	300	830	1734	−0.1051	0.4403	5.5861	−1.7912
35Cr2Ni4MoA	[35]	160	1070	1342	−0.0584	0.3784	9.7109	−3.0370
2014-T6 Al	[36]	/	494	1120	−0.1221	0.4815	2.3949	−0.7241

refer to the list of references at the end of the paper.