Deep Learning of Temperature – Dependent Stress – Strain Hardening Curves

In this study, structure – property relationships (SPR) have been investigated using machine learning methods (ML). The research objective was to create a ML model that can predict the stress – strain response of materials at different temperatures from a given microstructure with industrially accep...

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Main Authors: Nikolić, Filip, Čanađija, Marko
Format: Article
Language:English
Published: Académie des sciences 2023-05-01
Series:Comptes Rendus. Mécanique
Subjects:
Online Access:https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.185/
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author Nikolić, Filip
Čanađija, Marko
author_facet Nikolić, Filip
Čanađija, Marko
author_sort Nikolić, Filip
collection DOAJ
description In this study, structure – property relationships (SPR) have been investigated using machine learning methods (ML). The research objective was to create a ML model that can predict the stress – strain response of materials at different temperatures from a given microstructure with industrially acceptable accuracy and high computational efficiency. Automated microstructure generation techniques and numerical simulations were developed to create a dataset for the ML model. Two – phase 3D representative volume elements (RVEs) were analyzed using finite element analysis (FEA) to obtain the stress – strain responses of the RVEs. The phase arrangement of the RVEs, the temperature, and the stress – strain responses were used to train the ML model. The microstructure arrangement and the temperature – dependent mechanical properties of each phase were known parameters, while the output parameter was the stress – strain response of the two – phase RVE. The ML model has shown excellent prediction accuracy in the temperature range from 20 °C to 250 °C. In addition, the model showed very high computational efficiency compared to FEA, allowing much faster prediction of the stress – strain curves at specific temperatures.
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spelling doaj.art-7a792f7128c4414db97999b168753d7f2023-10-24T14:21:13ZengAcadémie des sciencesComptes Rendus. Mécanique1873-72342023-05-01351G115117010.5802/crmeca.18510.5802/crmeca.185Deep Learning of Temperature – Dependent Stress – Strain Hardening CurvesNikolić, Filip0https://orcid.org/0000-0002-4343-5069Čanađija, Marko1https://orcid.org/0000-0001-6550-0258Elaphe Propulsion Technologies Ltd, CAE Department, Litostrojska 44c, 1000 Ljubljana, Slovenia; University of Rijeka, Faculty of Engineering, Department of Engineering Mechanics, Vukovarska 58, 51000 Rijeka, CroatiaUniversity of Rijeka, Faculty of Engineering, Department of Engineering Mechanics, Vukovarska 58, 51000 Rijeka, CroatiaIn this study, structure – property relationships (SPR) have been investigated using machine learning methods (ML). The research objective was to create a ML model that can predict the stress – strain response of materials at different temperatures from a given microstructure with industrially acceptable accuracy and high computational efficiency. Automated microstructure generation techniques and numerical simulations were developed to create a dataset for the ML model. Two – phase 3D representative volume elements (RVEs) were analyzed using finite element analysis (FEA) to obtain the stress – strain responses of the RVEs. The phase arrangement of the RVEs, the temperature, and the stress – strain responses were used to train the ML model. The microstructure arrangement and the temperature – dependent mechanical properties of each phase were known parameters, while the output parameter was the stress – strain response of the two – phase RVE. The ML model has shown excellent prediction accuracy in the temperature range from 20 °C to 250 °C. In addition, the model showed very high computational efficiency compared to FEA, allowing much faster prediction of the stress – strain curves at specific temperatures.https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.185/deep learningtemperature dependent stress – strain curvesstructure – property relationshipsfinite element analysismachine learning
spellingShingle Nikolić, Filip
Čanađija, Marko
Deep Learning of Temperature – Dependent Stress – Strain Hardening Curves
Comptes Rendus. Mécanique
deep learning
temperature dependent stress – strain curves
structure – property relationships
finite element analysis
machine learning
title Deep Learning of Temperature – Dependent Stress – Strain Hardening Curves
title_full Deep Learning of Temperature – Dependent Stress – Strain Hardening Curves
title_fullStr Deep Learning of Temperature – Dependent Stress – Strain Hardening Curves
title_full_unstemmed Deep Learning of Temperature – Dependent Stress – Strain Hardening Curves
title_short Deep Learning of Temperature – Dependent Stress – Strain Hardening Curves
title_sort deep learning of temperature dependent stress strain hardening curves
topic deep learning
temperature dependent stress – strain curves
structure – property relationships
finite element analysis
machine learning
url https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.185/
work_keys_str_mv AT nikolicfilip deeplearningoftemperaturedependentstressstrainhardeningcurves
AT canađijamarko deeplearningoftemperaturedependentstressstrainhardeningcurves