PSI - Issue 43

Matthias Oberreiterr et al. / Procedia Structural Integrity 43 (2023) 240–245 Matthias Oberreiter/ Structural Integrity Procedia 00 (2022) 000 – 000

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• The methodology of Tiryakioğlu evaluates the fatigue strength well using shrinkage porosity, but leads to a conservative assessment if all defect types are considered (oxide films and slip planes included). • Murakami’s approach leads to a conservative estimate of the fatigue strength in the case o f microporosiy evaluated by computed tomography. Considering all defects types (porosity, bifilms and slip-areas) lead to a minor conservative fatigue design of 4.7% Acknowledgements The financial support by the Austrian Federal Ministry for Digital and Economic Affairs and the National Foundation for Research, Technology, and Development is gratefully acknowledged. References Aigner R, Leitner M, Stoschka M, Hannesschläger C, Wabro T, Ehart R. Modification of a Defect -Based Fatigue Assessment Model for Al-Si Cu Cast Alloys. Materials 2018;11(12). https://doi.org10.3390/ma11122546. Åman M, Okazaki S, Matsunaga H, Marquis GB, Remes H. 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