PSI - Issue 38

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Author name / Structural Integrity Procedia 00 (2021) 000 – 000

M. Bonneric et al. / Procedia Structural Integrity 38 (2022) 141–148

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4. Conclusions In this work, it was proposed to introduce artificial defects directly into the CAD files of additively manufactured specimens to establish the Kitagawa Takahashi diagram of the AlSi7Mg0.6 alloy. The fatigue cracks successfully initiated at the artificial defects, resulting in a limited scatter of the results. In addition, the El-Haddad model determined with artificial defect data provided a satisfying prediction of the fatigue strength associated to the natural defects. At the present time, further numerical work is being carried out to study the influence of the artificial defect morphology, as some differences in terms of fatigue strengths were observed between the different artificial defect geometries considered in this study. Acknowledgements This work falls within the framework of the ANDDURO project hosted by the French Institute of Technology IRT Saint Exupery, supported by Occitanie Region and industrial partners. 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