the larger diameter (d) specimen. The smallest R/d-ratio gave the largest deviations between the model and the experiments. Specific knowledge about specimen geometry and the maximum planned compression force is necessary to avoid buckling during compression in axial low-cycle fatigue tests. The presented work is limited to the first compression cycle, but is crucial for a successful low-cycle fatigue test.
Availability of data and materials
All the data used in this investigation are available on request from the corresponding author.
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The authors are thankful for assistance in the laboratory at Department of Mechanical Engineering at Western Norway University of Applied Sciences. Mr. Harald Moen operated the tensile machine, and the specimens are machined by Mr. Kjetil Gravelseter. A special thanks to the faculty of Engineering and Science that has financed IAESTE-practitioners who have helped us in this work.
This investigation is funded by internal resources at the faculty if engineering and science at Western Norway University of Applied Sciences.
The authors declare that they have no competing interests.
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