## 6 Conclusions and Recommendations  
In this work, numerous tensile tests at room temperature and strain rates 0.001 s\({}^{-1}\)-0.5 s\({}^{-1}\) were performed in order to calculate the Johnson-Cook model and damage parameters for SBPR 930/1080 Type B No. 1 tendon material aimed at fracture analysis of post-tensioned concrete members. Overall, the results obtained in this work, after the calculation of JC parameters, showed good agreement with the experimental data. To verify the agreement between numerical data and experimental tensile data, commercial FEM software was used. The experimental tensile tests were replicated in detail in order to verify the performance of the damage model using both experimental observations, experimental stress-strain data, as well as DIC analysis. The JC model is found to be able to closely predict experimental data with less effort in comparison to other analytical models, but on the other hand, to properly calibrate the related parameters, extensive numerical data are required from several experimental cases. It was found that besides small prediction differences between the FE simulation and experimental results, good accuracy was achieved in predicting the effects of strain concentration and geometrical deformation (necking). Based on these research outcomes, the followed procedure can be applied to closely predict the performance of tested material for fracture analysis of post-tensioned concrete members. As for recommendations, in this work, all testing was performed at room temperature, and thus, we were not able to identify damage-related parameters with regard to material softening under elevated temperatures; therefore, further testing could be performed to identify these parameters, and dynamic testing could be performed under even higher strain rates, in order to gain a broader picture of strain-related hardening effects. Furthermore, by utilizing the JC model and damage parameters presented in this work, researchers can simulate and estimate the remaining strength of a damaged or corroded PC tendon. By measuring or estimating the remaining cross-section of a tendon, it is possible to accurately estimate stress-concentration states surrounding the damaged or corroded area and construct relevant fragility curves based on the anticipated loading conditions. I.G. : conceptualization; methodology; investigation; data analysis and curation; validation; writing--original manuscript. N.C.: supervision, reviewing and editing. All authors have read and agreed to the published version of the manuscript. This research received no external funding. Not applicable. The data presented in this study are available on request from the corresponding author. Figure 20: Visual comparison between DIC analysis and FE simulation strain map results for smooth specimens at the last captured frame before rupture for (**a**) 0.001 s\({}^{-1}\) and (**b**) 0.5 s\({}^{-1}\) strain rates. **Acknowledgments:** The authors would like to thank [PERSON] and [PERSON] of the Tokyo Institute of Technology for their advice in carrying out this study. **Conflicts of Interest:** The authors declare no conflict of interest. Appendix A Calculations and parameter estimations in Sections 3 and 4 were performed considering the damage initiation point of Figure 10 and subsequent material softening described in Section 4.1 and Figure 15b. Following that procedure, FEM simulations up to the point of fracture are able to closely match the experimental data both on a singular element basis (Figure 14) as well as full model simulations (Figure 17). When using fracture point as the basis for calculating JC damage parameters, the correlation between fracture strain and stress triaxiality from uniaxial tensile test data can be seen in Figure A1. The curve, although exponential shaped, has a distinctively different shape as a result of the \(D_{1}\)-\(D_{3}\) parameters.