PSI - Issue 38

Frédéric Kihm et al. / Procedia Structural Integrity 38 (2022) 12–29

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Kihm, Miu, Bonato / Structural Integrity Procedia 00 (2021) 000 – 000

Fig. 10. distribution of residuals

The results of the Ordinary Least Squares function are presented in Table 9:

Table 9. OLS results.for the case with only Accel_lat_Chassis Damage input Dep. Variable: StrainDamage R-squared 0.194 No. Observations 1220 Adj. R-squared 0.194 Df Residuals 1218 Prob (F-statistic): 3.78e-59 Df Model 1

coef

P value

[0.025 0.192 0.308

0.975] 0.216 0.388

const

0.2038 0.3483

0.000 0.000

Accel_Lat_ChassisDamage

The above statistical results indicate that we are in a position to explore what happens if we augmented the model’s complexity by using both parameters. Table 10 shows the results of the Ordinary Least Squares function when both Rear_axle_inclination and Accel_Lat_Chassis are considered:

Table 10. OLS results.for the case with Rear_axle_inclination Damage and Accel_Lat_Chassis Damage inputs Dep. Variable: StrainDamage R-squared 0.503 No. Observations 1220 Adj. R-squared 0.502 Df Residuals 1217 Prob (F-statistic): 1.68e-185 Df Model 2

coef

P value

[0.025 0.121 0.420 0.109

0.975] 0.143 0.485 0.178

const

0.1319

0.000 0.000 0.000

Rear_axle_inclinationDamage 0.4523

Accel_Lat_ChassisDamage

0.1433

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