Automated Debonding Characterization in Reinforced Structures Based on Finite Element Analysis and Convolutional Neural Networks
A study utilizing convolutional neural networks (CNN) has been conducted to detect and classify invisible debonding-type defects in reinforced structures. Training data for these defects is collected from the finite element models of honeycomb sandwich panels and skin-stringer systems, commonly empl...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10423000/ |
| _version_ | 1797316033236697088 |
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| author | Ji-Yun Kim Youngki Kim Je-Heon Han |
| author_facet | Ji-Yun Kim Youngki Kim Je-Heon Han |
| author_sort | Ji-Yun Kim |
| collection | DOAJ |
| description | A study utilizing convolutional neural networks (CNN) has been conducted to detect and classify invisible debonding-type defects in reinforced structures. Training data for these defects is collected from the finite element models of honeycomb sandwich panels and skin-stringer systems, commonly employed reinforcement structures in aerospace applications. The excitation frequency is determined based on the amplitude of the reflected wave from the defect, and the optimal sensor array is selected. The constructed two-dimensional training image, created by vertically stacking the measured responses in the time domain, exhibits high classification performance even with a shallow neural network. The neural network undergoes optimization through adjustment to the kernel parameters and initial learning rate. To assess the general performance of the training model, k-fold cross-validation is employed. The CNN-based non-destructive evaluation algorithm demonstrates high classification performance for debonding defects in honeycomb sandwich panels and skin-stringer structures. Moreover, the suggested algorithm is robust against noise, emphasizing its effectiveness in real-world applications. |
| first_indexed | 2024-03-08T03:12:24Z |
| format | Article |
| id | doaj.art-1039c36717054f36a29433d046d8eb33 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-08T03:12:24Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-1039c36717054f36a29433d046d8eb332024-02-13T00:01:39ZengIEEEIEEE Access2169-35362024-01-0112203582037510.1109/ACCESS.2024.336296510423000Automated Debonding Characterization in Reinforced Structures Based on Finite Element Analysis and Convolutional Neural NetworksJi-Yun Kim0https://orcid.org/0009-0007-3189-6849Youngki Kim1https://orcid.org/0000-0003-0061-7433Je-Heon Han2https://orcid.org/0000-0002-9930-0083Department of Mechanical Engineering, Tech University of Korea, Siheung-si, South KoreaDepartment of Mechanical Engineering, University of Michigan–Dearborn, Dearborn, MI, USADepartment of Mechanical Engineering, Tech University of Korea, Siheung-si, South KoreaA study utilizing convolutional neural networks (CNN) has been conducted to detect and classify invisible debonding-type defects in reinforced structures. Training data for these defects is collected from the finite element models of honeycomb sandwich panels and skin-stringer systems, commonly employed reinforcement structures in aerospace applications. The excitation frequency is determined based on the amplitude of the reflected wave from the defect, and the optimal sensor array is selected. The constructed two-dimensional training image, created by vertically stacking the measured responses in the time domain, exhibits high classification performance even with a shallow neural network. The neural network undergoes optimization through adjustment to the kernel parameters and initial learning rate. To assess the general performance of the training model, k-fold cross-validation is employed. The CNN-based non-destructive evaluation algorithm demonstrates high classification performance for debonding defects in honeycomb sandwich panels and skin-stringer structures. Moreover, the suggested algorithm is robust against noise, emphasizing its effectiveness in real-world applications.https://ieeexplore.ieee.org/document/10423000/CNNFEAnondestructive testingultrasonic transducer arrays |
| spellingShingle | Ji-Yun Kim Youngki Kim Je-Heon Han Automated Debonding Characterization in Reinforced Structures Based on Finite Element Analysis and Convolutional Neural Networks IEEE Access CNN FEA nondestructive testing ultrasonic transducer arrays |
| title | Automated Debonding Characterization in Reinforced Structures Based on Finite Element Analysis and Convolutional Neural Networks |
| title_full | Automated Debonding Characterization in Reinforced Structures Based on Finite Element Analysis and Convolutional Neural Networks |
| title_fullStr | Automated Debonding Characterization in Reinforced Structures Based on Finite Element Analysis and Convolutional Neural Networks |
| title_full_unstemmed | Automated Debonding Characterization in Reinforced Structures Based on Finite Element Analysis and Convolutional Neural Networks |
| title_short | Automated Debonding Characterization in Reinforced Structures Based on Finite Element Analysis and Convolutional Neural Networks |
| title_sort | automated debonding characterization in reinforced structures based on finite element analysis and convolutional neural networks |
| topic | CNN FEA nondestructive testing ultrasonic transducer arrays |
| url | https://ieeexplore.ieee.org/document/10423000/ |
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