Issue 69

M. B. Prince et alii, Frattura ed Integrità Strutturale, 69 (2024) 154-180; DOI: 10.3221/IGF-ESIS.69.12

Figure 16: Contact status of bonded region of concrete-reinforcement of reference specimen E1R16.

Figure 17: FEM Von Mises Stresses of reference specimen E1R16 [21] using equation of Strum and Visintin.

Figure 18: Bond Stress Vs Slip for reference specimen C1R20 [21].

Reference specimens expected to have splitting or splitting-pullout failure Bond stress-slip behavior

Fig. 18 shows the experimental and finite bond stress vs. slip behavior of the reference specimen C1R20, whose failure has been predicted as splitting or splitting-pullout failure. Suitable analytical models [2, 3, 5, 7, 8] have been considered to determine several bond stress-to-slip relationships for performing finite element analysis. It is evident that the analytical models accurately predicted bond stress to slip behavior in the elastic region. However, the finite element bond stress at the peak showed a 5.52 ~ 10.46 MPa deviation when compared to the experimental result. The FEM developed using the

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