PSI - Issue 77

Claudia Barile et al. / Procedia Structural Integrity 77 (2026) 3–10 Barile and Kannan/ Structural Integrity Procedia 00 (2026) 000 – 000

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Fig. 3. Flexural Strength and Flexural Modulus of Self-Healing Composite Specimen Groups. The results show that there is a marginal recovery of flexural properties after healing in the tested self-healing CFRP specimens. 3.2. Microscopic Analysis Results To evaluate the influence of healing in failure progression, fractographic analysis is carried out and the results are discussed in the next section.

Fig. 4. Micrographs of Unhealed Specimen Groups: (a) Failure dominated by Kink and Shear Band Formation; (b) Evidence of Wedge Splitting and Longitudinal Cracks; Micrographs of Healed Specimen Groups: (a) Failure dominated by Through Thickness Shear and Longitudinal Cracks; (d) Failure stemming from the Areas of Resin Bleed