Issue 70

S.K. Shandiz et alii, Frattura ed Integrità Strutturale, 70 (2024) 24-54; DOI: 10.3221/IGF-ESIS.70.02

Figure 11: Frequency spectrum for cases (a) P1, (b) P2, (c) P3.

(a) (c) Figure 12: Normalized instantaneous energy of IMF extracted through VMD for cases (a) P1, (b) P2, (c) P3. (b)

Figure 13: Normalized instantaneous energy of IMFs extracted through VMD for P1 Damage scenario with six IMFs.

In order to determine the damage in other cases, their frequency spectrum is shown (see Appendix B), and the instantaneous energy of the related IMFs is extracted in those central frequencies based on the significant difference between the intact and damaged cases (see Fig. 14).

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