PSI - Issue 60

V. Venkatesh et al. / Procedia Structural Integrity 60 (2024) 372–381

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V Venkatesh et al. / Structural Integrity Procedia 00 (2019) 000 – 000

Fig. 7. (a) Scanning electron image of the fillet surface adjacent to fracture, and (b) magnified view of the fracture origin region marked in (a) showing fracture along a deep circular machining mark (white arrows).

Fig. 8. (a-d) Scanning electron images of the region marked 'A' through 'D' respectively in Fig.7(a), showing multiple fatigue crack initiation at the machining mark and their local propagation paths (indicated by arrows of different colours).