Issue 68

C. Bleicher et alii, Frattura ed Integrità Strutturale, 68 (2024) 371-389; DOI: 10.3221/IGF-ESIS.68.25

On the stress- and strain-based fatigue behavior of welded thick walled nodular cast iron

Christoph Bleicher, Steffen Schoenborn, Heinz Kaufmann Fraunhofer Institute for Structural Durability and System Reliability, Darmstadt, Germany christoph.bleicher@lbf.fraunhofer.de, https://orcid.org/0000-0002-0874-9548 steffen.schoenborn@lbf.fraunhofer.de, https://orcid.org/0000-0003-2743-1380 heinz.kaufmann@lbf.fraunhofer.de, http://orcid.org/0009-0002-6295-4363 Masoud Alizadeh-Sh Department of Wind and Energy Systems, Technical University of Denmark, 4000 Roskilde, Denmark maaliz@dtu.dk, http://orcid.org/0000-0001-9621-4991

Citation: Bleicher, C., Schoenborn, S., Kaufmann, H., Alizadeh-Sh, M., On the stress- and strain-based fatigue behavior of welded thick-walled nodular cast iron, Frattura ed Integrità Strutturale, 68 (2024) 371-389.

Received: 31.01.2024 Accepted: 09.03.2024 Published: 15.03.2024 Issue: 04.2024

Copyright: © 2024 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

K EYWORDS . Fatigue, Nodular cast iron, Thick-walled, Welding.

I NTRODUCTION ast components made of nodular cast iron (GJS) [1] are widely used in heavy industry and wind energy turbines, these components usually exhibiting wall thicknesses of 100 mm. Due to its wide range of material properties, with high strength and ductility, and the degree of freedom in design, GJS is used for highly loaded components such as rotor hubs, machine carriers, gear boxes and torque arms, sometimes exceeding 30 tons in weight. For those components C

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