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Low cost estimation of Wöhler and Goodman–Haigh curves of Ti-6Al-4V samples by considering the stress ratio effect

Toasa Caiza, P. D.; Sire, S.; Ummenhofer, T.; Uematsu, Y.

Abstract:

The stress ratio effect on the fatigue life of materials is a topic which have been studied by two different approaches. On the one hand, several experiments, performed under different stress ratios are necessary to estimate the corresponding Wöhler curves. Afterwards, these curves are considered to estimate the fatigue life under a particular stress range. On the other hand, fatigue failure criteria for fluctuating stress like the Goodman–Haigh relationship, are applied to estimate the stress amplitude for a constant fatigue life. Based on the Stüssi function, this paper presents a low cost model to estimate Wöhler curves and constant fatigue Goodman–Haigh diagrams. This procedure requires a set of tests performed under a particular stress ratio from LCF to HCF, and data from minimum two additional stress ranges for each subsequent stress ratio. An application on data from Ti-6Al-4V samples manufactured by selective laser melting (SLM) is presented.


Verlagsausgabe §
DOI: 10.5445/IR/1000140718
Veröffentlicht am 15.12.2021
Originalveröffentlichung
DOI: 10.1111/ffe.13607
Scopus
Zitationen: 6
Web of Science
Zitationen: 5
Dimensions
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Versuchsanstalt für Stahl, Holz und Steine (VAKA)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2022
Sprache Englisch
Identifikator ISSN: 0160-4112, 8756-758X
KITopen-ID: 1000140718
Erschienen in Fatigue & fracture of engineering materials & structures
Verlag John Wiley and Sons
Band 45
Heft 2
Seiten 441-450
Vorab online veröffentlicht am 11.11.2021
Nachgewiesen in Dimensions
Scopus
Web of Science
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