Machine Learning Driven Prediction of Residual Stresses for the Shot Peening Process Using a Finite Element Based Grey-Box Model Approach

The shot peening process is a common procedure to enhance fatigue strength on load-bearing components in the metal processing environment. The determination of optimal process parameters is often carried out by costly practical experiments. An efficient method to predict the resulting residual stres...

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Main Authors: Benjamin James Ralph, Karin Hartl, Marcel Sorger, Andreas Schwarz-Gsaxner, Martin Stockinger
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Journal of Manufacturing and Materials Processing
Subjects:
Online Access:https://www.mdpi.com/2504-4494/5/2/39
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author Benjamin James Ralph
Karin Hartl
Marcel Sorger
Andreas Schwarz-Gsaxner
Martin Stockinger
author_facet Benjamin James Ralph
Karin Hartl
Marcel Sorger
Andreas Schwarz-Gsaxner
Martin Stockinger
author_sort Benjamin James Ralph
collection DOAJ
description The shot peening process is a common procedure to enhance fatigue strength on load-bearing components in the metal processing environment. The determination of optimal process parameters is often carried out by costly practical experiments. An efficient method to predict the resulting residual stress profile using different parameters is finite element analysis. However, it is not possible to include all influencing factors of the materials’ physical behavior and the process conditions in a reasonable simulation. Therefore, data-driven models in combination with experimental data tend to generate a significant advantage for the accuracy of the resulting process model. For this reason, this paper describes the development of a grey-box model, using a two-dimensional geometry finite element modeling approach. Based on this model, a Python framework was developed, which is capable of predicting residual stresses for common shot peening scenarios. This white-box-based model serves as an initial state for the machine learning technique introduced in this work. The resulting algorithm is able to add input data from practical residual stress experiments by adapting the initial model, resulting in a steady increase of accuracy. To demonstrate the practical usage, a corresponding Graphical User Interface capable of recommending shot peening parameters based on user-required residual stresses was developed.
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spelling doaj.art-3fc49d06106f467cbafd018f7f6c0df82023-11-21T16:28:07ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942021-04-01523910.3390/jmmp5020039Machine Learning Driven Prediction of Residual Stresses for the Shot Peening Process Using a Finite Element Based Grey-Box Model ApproachBenjamin James Ralph0Karin Hartl1Marcel Sorger2Andreas Schwarz-Gsaxner3Martin Stockinger4Chair of Metal Forming, Montanuniversität Leoben, Franz Josef Str. 18, 8700 Leoben, AustriaChair of Metal Forming, Montanuniversität Leoben, Franz Josef Str. 18, 8700 Leoben, AustriaChair of Metal Forming, Montanuniversität Leoben, Franz Josef Str. 18, 8700 Leoben, AustriaChair of Metal Forming, Montanuniversität Leoben, Franz Josef Str. 18, 8700 Leoben, AustriaChair of Metal Forming, Montanuniversität Leoben, Franz Josef Str. 18, 8700 Leoben, AustriaThe shot peening process is a common procedure to enhance fatigue strength on load-bearing components in the metal processing environment. The determination of optimal process parameters is often carried out by costly practical experiments. An efficient method to predict the resulting residual stress profile using different parameters is finite element analysis. However, it is not possible to include all influencing factors of the materials’ physical behavior and the process conditions in a reasonable simulation. Therefore, data-driven models in combination with experimental data tend to generate a significant advantage for the accuracy of the resulting process model. For this reason, this paper describes the development of a grey-box model, using a two-dimensional geometry finite element modeling approach. Based on this model, a Python framework was developed, which is capable of predicting residual stresses for common shot peening scenarios. This white-box-based model serves as an initial state for the machine learning technique introduced in this work. The resulting algorithm is able to add input data from practical residual stress experiments by adapting the initial model, resulting in a steady increase of accuracy. To demonstrate the practical usage, a corresponding Graphical User Interface capable of recommending shot peening parameters based on user-required residual stresses was developed.https://www.mdpi.com/2504-4494/5/2/39python scriptingresidual stressesshot peeningfinite element analysisdigitalizationmachine learning
spellingShingle Benjamin James Ralph
Karin Hartl
Marcel Sorger
Andreas Schwarz-Gsaxner
Martin Stockinger
Machine Learning Driven Prediction of Residual Stresses for the Shot Peening Process Using a Finite Element Based Grey-Box Model Approach
Journal of Manufacturing and Materials Processing
python scripting
residual stresses
shot peening
finite element analysis
digitalization
machine learning
title Machine Learning Driven Prediction of Residual Stresses for the Shot Peening Process Using a Finite Element Based Grey-Box Model Approach
title_full Machine Learning Driven Prediction of Residual Stresses for the Shot Peening Process Using a Finite Element Based Grey-Box Model Approach
title_fullStr Machine Learning Driven Prediction of Residual Stresses for the Shot Peening Process Using a Finite Element Based Grey-Box Model Approach
title_full_unstemmed Machine Learning Driven Prediction of Residual Stresses for the Shot Peening Process Using a Finite Element Based Grey-Box Model Approach
title_short Machine Learning Driven Prediction of Residual Stresses for the Shot Peening Process Using a Finite Element Based Grey-Box Model Approach
title_sort machine learning driven prediction of residual stresses for the shot peening process using a finite element based grey box model approach
topic python scripting
residual stresses
shot peening
finite element analysis
digitalization
machine learning
url https://www.mdpi.com/2504-4494/5/2/39
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AT andreasschwarzgsaxner machinelearningdrivenpredictionofresidualstressesfortheshotpeeningprocessusingafiniteelementbasedgreyboxmodelapproach
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