PSI - Issue 25
M F Borges et al. / Procedia Structural Integrity 25 (2020) 254–261 MF Borges/ Structural Integrity Procedia 00 (2019) 000–000
259
6
0.4
0.4
R² = 0.9882
R² = 0.9826
R² = 0.9964
R² = 0.9726
0.3
0.3
0.2
0.2
δ p [μm]
δ p [μm]
0.1
0.1
SS304L AA7050-T6
SS304L AA7050-T6
(a)
(b)
0
0
0
0.005
0.01
0.015
0.02
0
0.01
0.02
0.03
1/Y 0 [MPa -1 ]
1/E [GPa -1 ]
0.4
0.4
SS304L AA7050-T6
SS304L AA7050-T6
0.3
0.3
0.2
0.2
δ p [μm]
δ p [μm]
0.1
0.1
(c)
(d)
0
0
0
200
400
600
0
100
200
300
400
X Sat [MPa ]
C X [-]
0.4
0.3
SS304L
0.3
0.2
0.2
δ p [μm]
δ p [μm]
0.1
0.1
SS304L
(e)
(f)
0
0
0
100
200
300
400
0
5
10
15
C Y [-]
Y Sat [MPa]
Fig. 2. Effect of material parameters on FCG rate (a) Young’s modulus, E; (b) Yield stress, Y 0 . (c) Kinematic saturation stress, X Sat . (d) Kinematic saturation rate, C x . (e) Isotropic saturation stress, Y Sat . (f) Isotropic saturation rate, C y .
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