Predicting impact strength of perforated targets using artificial neural networks trained on FEM-generated datasets

The paper considers application of artificial neural networks (ANNs) for fast numerical evaluation of a residual impactor velocity for a family of perforated PMMA (Polymethylmethacrylate) targets. The ANN models were trained using sets of numerical results on impact of PMMA plates obtained via dynam...

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Main Authors: Nikita Kazarinov, Aleksandr Khvorov
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2024-02-01
Series:Defence Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214914723001642
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author Nikita Kazarinov
Aleksandr Khvorov
author_facet Nikita Kazarinov
Aleksandr Khvorov
author_sort Nikita Kazarinov
collection DOAJ
description The paper considers application of artificial neural networks (ANNs) for fast numerical evaluation of a residual impactor velocity for a family of perforated PMMA (Polymethylmethacrylate) targets. The ANN models were trained using sets of numerical results on impact of PMMA plates obtained via dynamic FEM coupled with incubation time fracture criterion. The developed approach makes it possible to evaluate the impact strength of a particular target configuration without complicated FEM calculations which require considerable computational resources. Moreover, it is shown that the ANN models are able to predict results for the configurations which cannot be processed using the developed FEM routine due to numerical instabilities and errors: the trained neural network uses information from successful computations to obtain results for the problematic cases. A simple static problem of a perforated plate deformation is discussed prior to the impact problem and preferable ANN architectures are presented for both problems. Some insight into the perforation pattern optimization using a genetic algorithm coupled with the ANN is also made and optimized perforation patterns which theoretically enhance the target impact strength are constructed.
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spelling doaj.art-6804cad6132d4eaab7fef323d9a6fd352024-03-06T05:27:04ZengKeAi Communications Co., Ltd.Defence Technology2214-91472024-02-01323244Predicting impact strength of perforated targets using artificial neural networks trained on FEM-generated datasetsNikita Kazarinov0Aleksandr Khvorov1Saint Petersburg State University, Saint Petersburg 199034, Russia; Corresponding author. Saint Petersburg State University, Saint Petersburg 199034, Russia.Higher School of Economics, Saint Petersburg 190121, RussiaThe paper considers application of artificial neural networks (ANNs) for fast numerical evaluation of a residual impactor velocity for a family of perforated PMMA (Polymethylmethacrylate) targets. The ANN models were trained using sets of numerical results on impact of PMMA plates obtained via dynamic FEM coupled with incubation time fracture criterion. The developed approach makes it possible to evaluate the impact strength of a particular target configuration without complicated FEM calculations which require considerable computational resources. Moreover, it is shown that the ANN models are able to predict results for the configurations which cannot be processed using the developed FEM routine due to numerical instabilities and errors: the trained neural network uses information from successful computations to obtain results for the problematic cases. A simple static problem of a perforated plate deformation is discussed prior to the impact problem and preferable ANN architectures are presented for both problems. Some insight into the perforation pattern optimization using a genetic algorithm coupled with the ANN is also made and optimized perforation patterns which theoretically enhance the target impact strength are constructed.http://www.sciencedirect.com/science/article/pii/S2214914723001642Machine learningImpactDynamic fractureFEMMesh distortionOptimization
spellingShingle Nikita Kazarinov
Aleksandr Khvorov
Predicting impact strength of perforated targets using artificial neural networks trained on FEM-generated datasets
Defence Technology
Machine learning
Impact
Dynamic fracture
FEM
Mesh distortion
Optimization
title Predicting impact strength of perforated targets using artificial neural networks trained on FEM-generated datasets
title_full Predicting impact strength of perforated targets using artificial neural networks trained on FEM-generated datasets
title_fullStr Predicting impact strength of perforated targets using artificial neural networks trained on FEM-generated datasets
title_full_unstemmed Predicting impact strength of perforated targets using artificial neural networks trained on FEM-generated datasets
title_short Predicting impact strength of perforated targets using artificial neural networks trained on FEM-generated datasets
title_sort predicting impact strength of perforated targets using artificial neural networks trained on fem generated datasets
topic Machine learning
Impact
Dynamic fracture
FEM
Mesh distortion
Optimization
url http://www.sciencedirect.com/science/article/pii/S2214914723001642
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AT aleksandrkhvorov predictingimpactstrengthofperforatedtargetsusingartificialneuralnetworkstrainedonfemgenerateddatasets