Issue 49

M. J. Adinoyi et alii, Frattura ed Integrità Strutturale, 49 (2019) 487-506; DOI: 10.3221/IGF-ESIS.49.46

2198-T351 AW2099-T83 2198-T851

600

500

400

300

200

Stress amplitude (MPa)

100

1,E+01

1,E+03

1,E+05

1,E+07

Fatigue cycles, N f

Figure 12 : Comparison of the Stress-Life curve with other Al-Li alloy.

0,1

Exp. total strain Exp. elastic strain

0,01

0,001

1,E+03 Axial strain amplitude (mm/mm) 1,E+04

1,E+05

1,E+06

Number of reversals to failure, 2N f

Figure 13 : Strain-life curve for AW2099-T83 alloy.

0,1

exp data

0,01

Strain amplitude (mm/mm)

0,001

1,E+02

1,E+03

1,E+04

1,E+05

1,E+06

Fatigue life, N f

(cycle)

Figure 14 : Strain-life curve bases on three-parameter.

499