Fig. 3 Typical strain-life curve for a wrought steel More

Fig. 28 Mean-stress modification to strain-life curve More

Fig. 14 Effects of both initial and periodic overstrain on the strain-life curve for an alloy steel. The fatigue limit for the no overstrain case is estimated from test data on similar material. From Ref 1 (p 666) as based on data from Ref 15 More

Fig. 26 Strain-life curves for samples of 7050 alloy with shearable precipitates (4 h at 120 °C, or 250 °F) and nonshearable precipitates (96 h at 150 °C, or 300 °F) More

Fig. 27 Strain-life curves for samples of Al-Zn-Mg- x Cu alloys with shearable precipitates (0.01% Cu) and nonshearable precipitates (2.1% Cu). DR, degree of recrystallization. (a) Cycled in dry air. (b) Cycled in distilled water More

Fig. 33 Strain-life curves of large-grained Al-Zn-Mg alloy with shearable precipitates when underaged (4 h at 120 °C, or 250 °F) and nonshearable precipitates plus precipitate-free zones when overaged (96 h at 150 °C, or 300 °F) More

Fig. 5 Strain-life curves for representative steels More

Fig. 24 Strain-life curves for a steel at three different hardness levels (approximation) More

Fig. 25 Strain-life curves for steels with varying microstructures and hardnesses. Source: Ref 6 More

Fig. 35 Strain-life curves for samples of 7050 alloy with shearable precipitates (4 h at 120 °C, or 250 °F) and nonshearable precipitates (96 h at 150 °C, or 300 °F) More

Fig. 36 Strain-life curves for samples of Al-Zn-Mg- x Cu alloys with shearable precipitates (0.01% Cu) and nonshearable precipitates (2.1% Cu). DR, degree of recrystallization. (a) Cycled in dry air. (b) Cycled in distilled water. Source: Ref 64 More

Fig. 42 Strain-life curves of large-grained Al-Zn-Mg alloy with shearable precipitates when underaged (4 h at 120 °C, or 250 °F) and nonshearable precipitates plus PFZs when overaged (96 h at 150 °C, or 300 °F). Source: Ref 64 More

Fig. 23 Derivation of the strain-life fatigue curve adjusted for mean stress effects. Adapted from Ref 4 More

Fig. 32 Cyclic strain vs. life curve for X7046-T63 and 5083-O aluminum alloys More