PSI - Issue 76

Matteo Benedetti et al. / Procedia Structural Integrity 76 (2026) 1–2

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practitioners with a shared interest in understanding and mitigating the effects of defects on fatigue performance. The scientific program featured 97 presentations , covering a wide range of topics such as: • Characterization and modeling of defects in metallic materials • Fatigue behavior of AM and cast alloys

• Multiaxial and high-cycle fatigue phenomena • Defect-sensitive design methods and standards • Advanced imaging, computational, and experimental techniques

Lively discussions were stimulated by thematic sessions, keynote and plenary lectures, and industrial contributions focusing on sectors such as aerospace, automotive, biomedical, and energy. This Special Issue of Procedia Structural Integrity includes a selection of 20 full-length papers , which were submitted after the conference and peer-reviewed under the supervision of the Scientific Committee. These contributions reflect the latest advances and diverse approaches to fatigue design in the presence of material defects. We gratefully recognize the support of our plenary and keynote speakers, sponsors, and the technical and administrative staff of the University of Trento for their essential role in the success of FDMD5. Their efforts made it possible to create an engaging, collaborative environment for advancing the field of fatigue design in the presence of material defects. M. Benedetti, S. Beretta, M. Madia, G. Meneghetti