Influence of fatigue on superconducting REBCO tapes under repeated cyclic tensile, bending and twisting loads: A simulation-based investigation

K. B. Ashok, Rijo Jacob Thomas*, M. Jose Prakash, A. Nijhuis

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)
39 Downloads (Pure)

Abstract

The effect of repeated cyclic loading on the superconducting REBCO tape under tensile, bending, and torsional loadings is investigated. The Fatigue Usage Factor (FUS) is calculated for each cyclic loading condition to identify degradation using the Matake criterion. The thicknesses of the tapes' constituent layers are also varied to identify the relative influence of each layer on overall fatigue performance. When the tape was subjected to fatigue-type loading, the thickness of the copper and Hastelloy layers was found to play a significant role. This holds true under tensile, bending, and twisting loading conditions. However, out of the three loading conditions, bending exhibits the greatest variation in FUS value with changes in Hastelloy and copper layer thickness. The maximum value of the fatigue usage factor is observed in the edges of the Hastelloy layer in all three loading cases. It has been found that the properties of the layer material, as well as the adjacent layer, play an important role in determining the fatigue strength of the tape.

Original languageEnglish
Article number103672
JournalCryogenics
Volume132
Early online date12 Apr 2023
DOIs
Publication statusPublished - Jun 2023

Keywords

  • 2023 OA procedure

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