Issue 74

V. J. Kalyani et alii, Frattura ed Integrità Strutturale, 74 (2025) 89-114; DOI: 10.3221/IGF-ESIS.74.07

same location and propagated further across the specimen width, which indicates effective bonding across diverse material interfaces and proper hybrid action is achieved. For GS specimen, the gridlines remain largely intact in the lower region, suggesting that the load transfer and stress distribution are quite efficient before complete failure. This type of failure indicates strong interfacial bonding and effective hybrid interaction between the constituent materials.

SS

GS

GG

SSS

SGS

GSG

GGG

(a) use of Sikadur 30 LP adhesive

SS

GS

GG

SSS

SGS

GSG

GGG

(b) use of Sikadur 330 Figure 12: Failure patterns of coupon specimens prepared using adhesive Sikadur 30 LP and Sikadur 330.

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