1 Introduction
2 Local strain approach (LSA)
2.1 Cyclic stabilized material behaviour
2.2 Neuber’s rule
2.3 Hysteresis counting method (HCM)
2.4 Damage parameter
2.5 Damage parameter Wöhler curve
3 Consideration of the forming process in the fatigue life calculation
3.1 Consideration of residual stresses
3.2 Transient material behaviour
3.3 Algorithmic implementation
4 Results and discussion
4.1 Cyclic material characterization
First Cycle | Cyclic stabilized | ||
---|---|---|---|
K | 1308.70 | \(K'\) | 2227.89 |
n | 0.0475 | \(n'\) | 0.2168 |
\(\sigma '_\mathrm {f} / {\mathrm {MPa}}\) | \(\varepsilon '_\mathrm {f}\) | b | c |
---|---|---|---|
1502.3 | \(-\)0.0862 | 0.1319 | \(-\)0.45132 |