PSI - Issue 18

R. De Finis et al. / Procedia Structural Integrity 18 (2019) 781–791 Author name / Structural Integrity Procedia 00 (2019) 000–000

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Fig. 3. Stiffness degradation cycle after cycle during constant amplitude test at different imposed loads.

(a)

(b) Fig. 4. Thermoelastic signal variations: (a) 95° and (b)5° percentile values at three stress level of constant amplitude testsStiffness degradation cycle after cycle during constant amplitude test at different imposed loads.