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

Figure 3

Equivalent completely reversed stress amplitude versus fatigue life correlations for FGH4095 superalloy (600°C) for the (a) Goodman, (b) Morrow, (c) SWT, and (d) modified Walker methods.

(a) Goodman, FGH4095 600°C

(b) Morrow, FGH4095 600°C

(c) SWT, FGH4095 600°C

(d) Modified Walker, FGH4095 600°C