20.500.12556/RUL-153579 Sensitivity of step-stress accelerated fatigue-life tests on type I censored data an engineering perspective Step-stress accelerated life testing is often used to estimate the fatigue life or reliability of structural components. Various methods exist for designing the optimal accelerated life test and estimating the parameters of the fatigue-life or reliability models. Although they are based on rigorous mathematical formulations, they sometimes result in inappropriate estimates of the model parameters if the experimental data consists of censored data. This article presents a robust engineering procedure for estimating the parameters of the fatigue-life curve and its scatter, which combines an inverse power law and the two-parametric Weibull distribution. The presented methodology is tested on use cases that stem from the experimental fatigue-life data. The results show that the proposed approach can yield a good estimate of the fatigue-life model. Moreover, it can be further concluded that the sensitivity of the fatigue-life model to the type I censored data strongly depends on the data scatter. step-stress accelerated life testing S-N curve Weibull PDF type I censored data model sensitivity stopničasto preskušanje dobe trajanja S-N krivulja Weibullova porazdelitev cenzurirani podatki tipa I občutljivost modela true false true Angleški jezik Slovenski jezik Članek v reviji 2024-01-16 14:31:03 2024-01-16 14:31:07 2024-01-17 03:43:22 0000-00-00 00:00:00 2024 0 0 Str. 397-412 iss. 2 Vol. 47 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.178.3 1460-2695 10.1111/ffe.14186 173920515 Fatigue_Fract_Eng_Mat_Struct_-_2023_-_Klemenc_-_Sensitivity_of_step‐stress_accelerated_fatigue‐life_tests_on_type_I.pdf Fatigue_Fract_Eng_Mat_Struct_-_2023_-_Klemenc_-_Sensitivity_of_step‐stress_accelerated_fatigue‐life_tests_on_type_I.pdf 1 A5A035F02D57B63A6D2C4C2F2B1E8A60 2df9e712e376e0658867178b913aa23b91b5a1da9b4ff25567564bb8abf4a96c c9418423-b473-11ee-9139-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=179663 https://onlinelibrary.wiley.com/doi/10.1111/ffe.14186 1 8134216c-b473-11ee-9139-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=179662 Fakulteta za strojništvo 0 0 0