Figure 4. Schematic representation of FE debonding analysis method
3.2 Cyclic Hardening Model
For the cyclic hardening model, three hardening models were used in this paper: a kinematic hardening model determined from the tensile stress-strain curve of X10CrMoVNb9-1 from RCC-MRx [44] and two Chaboche combined hardening models [45-46] with parameters for Grade 91 at 600oC, proposed by Kyaw et al. [47] and Saad et al. [48].
The kinematic hardening model is based on the average tensile stress-strain curve of X10CrMoVNb9-1 from RCC-MRx [44], which is given below: