PSI - Issue 75

Lewis Milne et al. / Procedia Structural Integrity 75 (2025) 419–425

425

L.Milne et al. / Structural Integrity Procedia 00 (2025) 000–000

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5. Conclusions

This research has significantly improved the confidence in carrying out accelerated fatigue testing of structural steel grades which exhibit a pronounced frequency sensitivity. A better understanding of the strain rate e ff ect on material strength and fatigue resistance, alongside its characterisation and quantification is a key achievement of this research. Several methods which allow for the correction of frequency e ff ects were proposed, allowing the application of fatigue data produced at ultrasonic test frequencies to be applied at the frequencies more common in industrial applications.

Acknowledgements

The authors greatly appreciate Weir Minerals Australia for the engineering advising and practical guidance and Shimadzu Europe & UK for the technical support over the course of this work.

References

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