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Fatigue life approach for large components in heavy plant engineering based on rainflow counted local strains

: Bisping, J.R.; Bleicher, Christoph; Wagener, Rainer; Melz, Tobias

Postprint (PDF; )

Procedia Engineering 101 (2015), S.43-51
ISSN: 1877-7058
International Conference on Material and Component Performance under Variable Amplitude Loading (VAL) <3, 2015, Prague>
Zeitschriftenaufsatz, Konferenzbeitrag, Elektronische Publikation
Fraunhofer LBF ()
fatigue life; engineering; rainflow; fatigue life; random amplitude; plant engineering

In the cement industry components are designed by using the finite element method. This practice is verified by strain measurements on machines in industrial use, utilising rainflow counting. A calculation model was developed for the assessment of such data. The model was calibrated for EN-GJS-400-15U by constant and random amplitude fatigue tests, based on measurement data. For test preparation, a method of omitting load cycles prior to load sequence reconstruction was developed. The experimental results show a satisfactory accuracy when using a constant characteristic damage sum, which can be improved by considering the damage potential of the load spectra.