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Fatigue assessment of thick-walled nodular cast iron with regard to highly loaded machine structures using the strainlife approach

: Hesseler, Jan; Bleicher, Christoph; Baumgartner, Jörg; Schnabel, Kai; Wagener, Rainer; Kaufmann, Heinz; Melz, Tobias

Beck, T. ; Deutscher Verband für Materialforschung und -prüfung e.V. -DVM-, Berlin:
LCF 2017, Eighth International Conference on Low Cycle Fatigue : June 27-29, 2017, Dresden, Germany
Berlin: DVM, 2017
ISBN: 978-3-9814516-5-8
International Conference on Low Cycle Fatigue (LCF) <8, 2017, Dresden>
Conference Paper
Fraunhofer LBF ()
nodular cast iron; wind energy; overload; cyclic material behavior; damage sum

For a light-weight design and a safe material and component utilization the cyclic and elastic plastic material behavior of thick-walled structures needs to be included in fatigue analyses. Especially for usage in wind energy applications, thick-walled components such as the hubor the carrier of the nacelle are partially highly loaded by extreme loads due to storms or during grid losses. For this purpose EN-GJS-400-18U-LT has been investigated under constant and variable amplitude loading by means of strain controlled fatigue tests and numerical simulation with special regard to extreme loads and local plastic deformation.