Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep Learning

Residual stress within a structural component can significantly affect the mechanical performance and stability of a structure. Therefore, it is crucial to find a way to determine the residual stress distribution to maintain the normal working of structures. Conventional methods for residual stress...

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Κύριοι συγγραφείς: Tulin Xiong, Lu Wang, Xianzhi Gao, Guangyan Liu
Μορφή: Άρθρο
Γλώσσα:English
Έκδοση: MDPI AG 2022-01-01
Σειρά:Applied Sciences
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Διαθέσιμο Online:https://www.mdpi.com/2076-3417/12/3/1195
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author Tulin Xiong
Lu Wang
Xianzhi Gao
Guangyan Liu
author_facet Tulin Xiong
Lu Wang
Xianzhi Gao
Guangyan Liu
author_sort Tulin Xiong
collection DOAJ
description Residual stress within a structural component can significantly affect the mechanical performance and stability of a structure. Therefore, it is crucial to find a way to determine the residual stress distribution to maintain the normal working of structures. Conventional methods for residual stress determination primarily include experimental testing, finite element simulations and inverse identification. However, these methods suffer from disadvantages of high testing costs, long calculation time and low inverse efficiency. To avoid these shortcomings, this study developed a high-performance method based on a deep learning technique. In this method, an artificial neural network was used to replace the finite element calculation in the finite element model updating (FEMU) technique and the residual stress distribution of structural components was inversely obtained based on the measured residual stresses of a finite number of measuring points. Compared with the conventional FEMU technique, the calculation efficiency of the proposed method was considerably improved. Furthermore, the accuracy and efficiency of the method were verified by simulated four-point bending experiments considering an elastic-plastic material.
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spelling doaj.art-4db176ec73fa4dd88bbabe4fc2fd10312023-11-23T15:53:28ZengMDPI AGApplied Sciences2076-34172022-01-01123119510.3390/app12031195Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep LearningTulin Xiong0Lu Wang1Xianzhi Gao2Guangyan Liu3School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, ChinaResidual stress within a structural component can significantly affect the mechanical performance and stability of a structure. Therefore, it is crucial to find a way to determine the residual stress distribution to maintain the normal working of structures. Conventional methods for residual stress determination primarily include experimental testing, finite element simulations and inverse identification. However, these methods suffer from disadvantages of high testing costs, long calculation time and low inverse efficiency. To avoid these shortcomings, this study developed a high-performance method based on a deep learning technique. In this method, an artificial neural network was used to replace the finite element calculation in the finite element model updating (FEMU) technique and the residual stress distribution of structural components was inversely obtained based on the measured residual stresses of a finite number of measuring points. Compared with the conventional FEMU technique, the calculation efficiency of the proposed method was considerably improved. Furthermore, the accuracy and efficiency of the method were verified by simulated four-point bending experiments considering an elastic-plastic material.https://www.mdpi.com/2076-3417/12/3/1195residual stress distributionartificial neural networkfinite element model updatinginverse identification
spellingShingle Tulin Xiong
Lu Wang
Xianzhi Gao
Guangyan Liu
Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep Learning
Applied Sciences
residual stress distribution
artificial neural network
finite element model updating
inverse identification
title Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep Learning
title_full Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep Learning
title_fullStr Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep Learning
title_full_unstemmed Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep Learning
title_short Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep Learning
title_sort inverse identification of residual stress distribution in aluminium alloy components based on deep learning
topic residual stress distribution
artificial neural network
finite element model updating
inverse identification
url https://www.mdpi.com/2076-3417/12/3/1195
work_keys_str_mv AT tulinxiong inverseidentificationofresidualstressdistributioninaluminiumalloycomponentsbasedondeeplearning
AT luwang inverseidentificationofresidualstressdistributioninaluminiumalloycomponentsbasedondeeplearning
AT xianzhigao inverseidentificationofresidualstressdistributioninaluminiumalloycomponentsbasedondeeplearning
AT guangyanliu inverseidentificationofresidualstressdistributioninaluminiumalloycomponentsbasedondeeplearning