Article (Scientific journals)
Assessing Feed-Forward Backpropagation Artificial Neural Networks for Strain-Rate-Sensitive Mechanical Modeling.
Tuninetti, Victor; Forcael, Diego; Valenzuela, Marian et al.
2024In Materials, 17 (2), p. 317
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Keywords :
artificial neural network; mechanical behavior; modeling; plastic flow; strain rate; Backpropagation artificial neural networks; Feedforward backpropagation; Manufacturing design; Manufacturing process; Mechanical modeling; Metals and alloys; Rate sensitive; Strain-rates; Materials Science (all); Condensed Matter Physics
Abstract :
[en] The manufacturing processes and design of metal and alloy products can be performed over a wide range of strain rates and temperatures. To design and optimize these processes using computational mechanics tools, the selection and calibration of the constitutive models is critical. In the case of hazardous and explosive impact loads, it is not always possible to test material properties. For this purpose, this paper assesses the efficiency and the accuracy of different architectures of ANNs for the identification of the Johnson-Cook material model parameters. The implemented computational tool of an ANN-based parameter identification strategy provides adequate results in a range of strain rates required for general manufacturing and product design applications. Four ANN architectures are studied to find the most suitable configuration for a reduced amount of experimental data, particularly for cases where high-impact testing is constrained. The different ANN structures are evaluated based on the model's predictive capability, revealing that the perceptron-based network of 66 inputs and one hidden layer of 30 neurons provides the highest prediction accuracy of the effective flow stress-strain behavior of Ti64 alloy and three virtual materials.
Disciplines :
Mechanical engineering
Author, co-author :
Tuninetti, Victor  ;  Université de Liège - ULiège > Département ArGEnCo ; Department of Mechanical Engineering, Universidad de La Frontera, Temuco 4811230, Chile
Forcael, Diego;  Department of Mechanical Engineering, Universidad de La Frontera, Temuco 4811230, Chile
Valenzuela, Marian;  Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Temuco 4811230, Chile
Martínez, Alex;  Department of Mechanical Engineering, Universidad de La Frontera, Temuco 4811230, Chile
Ávila, Andrés;  Centro de Excelencia de Modelación y Computación Científica, Universidad de La Frontera, Temuco 4811322, Chile
Medina, Carlos ;  Department of Mechanical Engineering, Faculty of Engineering, University of Concepción, Concepción 4070138, Chile
Pincheira, Gonzalo ;  Department of Industrial Technologies, Faculty of Engineering, Universidad of Talca, Curicó 3340000, Chile
Salas, Alexis ;  Department of Mechanical Engineering, Faculty of Engineering, University of Concepción, Concepción 4070138, Chile
Oñate, Angelo ;  Department of Mechanical Engineering, Faculty of Engineering, Universidad del Bío-Bío, Concepción 4081112, Chile ; Department of Materials Engineering (DIMAT), Faculty of Engineering, Universidad de Concepcion, Concepción 4070138, Chile
Duchene, Laurent  ;  Université de Liège - ULiège > Département ArGEnCo > Analyse multi-échelles dans le domaine des matériaux et structures du génie civil
Language :
English
Title :
Assessing Feed-Forward Backpropagation Artificial Neural Networks for Strain-Rate-Sensitive Mechanical Modeling.
Publication date :
08 January 2024
Journal title :
Materials
eISSN :
1996-1944
Publisher :
MDPI, Switzerland
Volume :
17
Issue :
2
Pages :
317
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
UFRO - Universidad de La Frontera
Funding text :
This work was funded by Universidad de La Frontera DI22-0067.
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since 10 March 2026

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