PSI - Issue 75

Said Allouch et al. / Procedia Structural Integrity 75 (2025) 299–310 S. Allouch / Structural Integrity Procedia (2025)

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Fig. 6. Load file development with 275/45R19.

The same load file was then applied to the other tire sizes for comparison. Notably, for the 275/50R20 tire the local stressed exhibited deviations below ±5%, indicating that the load file remained valid for this tire size. However, for the other tires (275/40R20, 275/35R20, and 275/30R20), deviations greater than ±5% were observed at certain strain gauges. As depicted in Fig. 7. This suggests that a significant loss of damage occurred, leading to under-testing if the same load file were used. Therefore, the existing load file could not be considered valid for these tire sizes, necessitating the creation of new load programs.

Fig. 7. Validation of load file for other tire ratios.