PSI - Issue 37

Sebastian Vetter et al. / Procedia Structural Integrity 37 (2022) 746–754 Sebastian Vetter / Structural Integrity Procedia 00 (2019) 000 – 000

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Non-scattering influenceparameter Scattering influence parameter

Shaft population

Stress type

Extern. shape

Material condition

Surface condition

Geometry parameters ̅ , ,

Surfacefactor

Loc.hardness

Residual stresses ̅ , , , , , , , , , ̅ ̅ , , , ̅ , , , ̅ ̅ , , , ̅ , , , ̅ , , ,

Scatterbetween shafts

̅ ̅ ̅

̅

,

Finite elementimplementation

Shaft inherent scatter

1 1

Shaft randomgenerator

Local strengthapproach , XOR

Stressmultiplier

failure

runout

Nominal fatiguestrength scatter

=

= = , XOR

Fig. 2. Simulation model for estimating the scatter of fatigue strength in the HCF region.