Gaussian Process for Machine Learning-Based Fatigue Life Prediction Model under Multiaxial Stress–Strain Conditions

In this paper, a new method for fatigue life prediction under multiaxial stress-strain conditions is developed. The method applies machine learning with the Gaussian process for regression to build a fatigue model. The fatigue failure mechanisms are reflected in the model by the application of the p...

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Main Authors: Aleksander Karolczuk, Dariusz Skibicki, Łukasz Pejkowski
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/21/7797
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author Aleksander Karolczuk
Dariusz Skibicki
Łukasz Pejkowski
author_facet Aleksander Karolczuk
Dariusz Skibicki
Łukasz Pejkowski
author_sort Aleksander Karolczuk
collection DOAJ
description In this paper, a new method for fatigue life prediction under multiaxial stress-strain conditions is developed. The method applies machine learning with the Gaussian process for regression to build a fatigue model. The fatigue failure mechanisms are reflected in the model by the application of the physics-based stress and strain invariants as input quantities. The application of the machine learning algorithm solved the problem of assigning an adequate parametric fatigue model to given material and loading conditions. The model was verified using the experimental data on the CuZn37 brass subjected to various cyclic loadings, including non-proportional multiaxial strain paths. The performance of the machine learning-based fatigue life prediction model is higher than the performance of the well-known parametric models.
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spelling doaj.art-1a691f27936543bfae097692d11e20292023-11-24T05:41:00ZengMDPI AGMaterials1996-19442022-11-011521779710.3390/ma15217797Gaussian Process for Machine Learning-Based Fatigue Life Prediction Model under Multiaxial Stress–Strain ConditionsAleksander Karolczuk0Dariusz Skibicki1Łukasz Pejkowski2Department of Mechanics and Machine Design, Opole University of Technology, Ul. Mikołajczyka 5, 45-271 Opole, PolandFaculty of Mechanical Engineering, UTP University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, PolandFaculty of Mechanical Engineering, UTP University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, PolandIn this paper, a new method for fatigue life prediction under multiaxial stress-strain conditions is developed. The method applies machine learning with the Gaussian process for regression to build a fatigue model. The fatigue failure mechanisms are reflected in the model by the application of the physics-based stress and strain invariants as input quantities. The application of the machine learning algorithm solved the problem of assigning an adequate parametric fatigue model to given material and loading conditions. The model was verified using the experimental data on the CuZn37 brass subjected to various cyclic loadings, including non-proportional multiaxial strain paths. The performance of the machine learning-based fatigue life prediction model is higher than the performance of the well-known parametric models.https://www.mdpi.com/1996-1944/15/21/7797fatigue life predictionCuZn37 brassmachine learning
spellingShingle Aleksander Karolczuk
Dariusz Skibicki
Łukasz Pejkowski
Gaussian Process for Machine Learning-Based Fatigue Life Prediction Model under Multiaxial Stress–Strain Conditions
Materials
fatigue life prediction
CuZn37 brass
machine learning
title Gaussian Process for Machine Learning-Based Fatigue Life Prediction Model under Multiaxial Stress–Strain Conditions
title_full Gaussian Process for Machine Learning-Based Fatigue Life Prediction Model under Multiaxial Stress–Strain Conditions
title_fullStr Gaussian Process for Machine Learning-Based Fatigue Life Prediction Model under Multiaxial Stress–Strain Conditions
title_full_unstemmed Gaussian Process for Machine Learning-Based Fatigue Life Prediction Model under Multiaxial Stress–Strain Conditions
title_short Gaussian Process for Machine Learning-Based Fatigue Life Prediction Model under Multiaxial Stress–Strain Conditions
title_sort gaussian process for machine learning based fatigue life prediction model under multiaxial stress strain conditions
topic fatigue life prediction
CuZn37 brass
machine learning
url https://www.mdpi.com/1996-1944/15/21/7797
work_keys_str_mv AT aleksanderkarolczuk gaussianprocessformachinelearningbasedfatiguelifepredictionmodelundermultiaxialstressstrainconditions
AT dariuszskibicki gaussianprocessformachinelearningbasedfatiguelifepredictionmodelundermultiaxialstressstrainconditions
AT łukaszpejkowski gaussianprocessformachinelearningbasedfatiguelifepredictionmodelundermultiaxialstressstrainconditions