TITLE:
Step-by-Step Building of a Four Dimensional Fatigue Compatible Regression Model including Frequencies
AUTHORS:
Enrique Castillo, Alfonso Fernández-Canteli, Sergio Blasón, Golta Khatibi, Bernhard Czerny, Mohammad Zareghomsheh
KEYWORDS:
Compatibility Conditions, Cumulative Damage, Frequency Effect, Functional Equations, Regression Model
JOURNAL NAME:
Open Journal of Statistics,
Vol.11 No.6,
December
29,
2021
ABSTRACT: The purpose of this research is to develop a model, with emphasis on
compatibility conditions and model building, valid for high cycle fatigue
design components such as wind turbines, automobiles, high speed railways and
aeronautical material. In this work, we have added the frequency as one more
variable to an existing fatigue model that already includes maximum stress,
stress ratio and lifetime. As a result, a model and estimation method has been
proposed and a random variable V has been identified, which, allows the
accumulated damage and the probability of failure to be assessed for any load history in terms of stress levels, stress ranges
and frequencies. Finally, the model is validated using a large set of
real experimental data.