Imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic model
The research presented in this paper aims to demonstrate how imperfect interfaces influence the behavior of a multilayered structure. To achieve this, a dynamic equivalent model for multilayered panels is used, enabling the characterization of these interfaces using experimental data. This model, kn...
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EDP Sciences
2024-01-01
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| Series: | Acta Acustica |
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| Online Access: | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2024/01/aacus240046/aacus240046.html |
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| author | Auquier Nicolas Ege Kerem Gourdon Emmanuel |
| author_facet | Auquier Nicolas Ege Kerem Gourdon Emmanuel |
| author_sort | Auquier Nicolas |
| collection | DOAJ |
| description | The research presented in this paper aims to demonstrate how imperfect interfaces influence the behavior of a multilayered structure. To achieve this, a dynamic equivalent model for multilayered panels is used, enabling the characterization of these interfaces using experimental data. This model, known as the Layer Wise (LW) model, incorporates imperfections in the interfaces through sliding displacement. To effectively validate the model against experimental measurements, an equivalence with a thin beam is established. Then the experimental methodology used for characterization is outlined, including the setup, considered samples, and data processing techniques. Specifically, the Corrected Force Analysis Technique (CFAT) is used, which is a robust method based on the equations of motion for thin plates or beams. This method, for the first time, allows obtaining broadband frequency results, facilitating dynamic monitoring of interface states in multilayers. The concurrently developed model enables the quantification of an interface parameter through experimental measurements. Finally, a detailed analysis of the results obtained through this methodology is provided, emphasizing the significant influence of imperfect interfaces on the dynamics of multilayered structures. |
| format | Article |
| id | doaj-art-1cc73dfd7d1b48b79ba4b95a7da04619 |
| institution | Kabale University |
| issn | 2681-4617 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Acta Acustica |
| spelling | doaj-art-1cc73dfd7d1b48b79ba4b95a7da046192025-01-06T10:56:06ZengEDP SciencesActa Acustica2681-46172024-01-0187810.1051/aacus/2024079aacus240046Imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic modelAuquier Nicolas0Ege Kerem1https://orcid.org/0000-0001-6448-6183Gourdon Emmanuel2ENTPE, Ecole Centrale de Lyon, CNRS, LTDS, UMR5513INSA Lyon, LVA, UR677ENTPE, Ecole Centrale de Lyon, CNRS, LTDS, UMR5513The research presented in this paper aims to demonstrate how imperfect interfaces influence the behavior of a multilayered structure. To achieve this, a dynamic equivalent model for multilayered panels is used, enabling the characterization of these interfaces using experimental data. This model, known as the Layer Wise (LW) model, incorporates imperfections in the interfaces through sliding displacement. To effectively validate the model against experimental measurements, an equivalence with a thin beam is established. Then the experimental methodology used for characterization is outlined, including the setup, considered samples, and data processing techniques. Specifically, the Corrected Force Analysis Technique (CFAT) is used, which is a robust method based on the equations of motion for thin plates or beams. This method, for the first time, allows obtaining broadband frequency results, facilitating dynamic monitoring of interface states in multilayers. The concurrently developed model enables the quantification of an interface parameter through experimental measurements. Finally, a detailed analysis of the results obtained through this methodology is provided, emphasizing the significant influence of imperfect interfaces on the dynamics of multilayered structures.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2024/01/aacus240046/aacus240046.htmlimperfect interfacecharacterizationequivalent dynamic modelinverse methodmultilayered structures |
| spellingShingle | Auquier Nicolas Ege Kerem Gourdon Emmanuel Imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic model Acta Acustica imperfect interface characterization equivalent dynamic model inverse method multilayered structures |
| title | Imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic model |
| title_full | Imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic model |
| title_fullStr | Imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic model |
| title_full_unstemmed | Imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic model |
| title_short | Imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic model |
| title_sort | imperfect interfaces characterization in a multilayered structure by means of an equivalent dynamic model |
| topic | imperfect interface characterization equivalent dynamic model inverse method multilayered structures |
| url | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2024/01/aacus240046/aacus240046.html |
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