Delamination thickness measurement based on Stoneley wave in bilayered composite structure
Introduction: For composite structures, delamination usually occurs at the interface. Ultrasonic guided waves have been widely used to detect the delamination. However, most researches focus on the measurement of the delamination length along the interface, and the measurement of the delamination th...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | Acta Acustica |
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| Online Access: | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2023/01/aacus230056/aacus230056.html |
| _version_ | 1827391754067771392 |
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| author | Zhou Tao Li Ming-hang Li Bing |
| author_facet | Zhou Tao Li Ming-hang Li Bing |
| author_sort | Zhou Tao |
| collection | DOAJ |
| description | Introduction: For composite structures, delamination usually occurs at the interface. Ultrasonic guided waves have been widely used to detect the delamination. However, most researches focus on the measurement of the delamination length along the interface, and the measurement of the delamination thickness is less studied. Method: In this paper, based on the characteristic that the Stoneley wave only propagates along the interface, the reflection coefficient of interaction between Stoneley wave and delamination is used to measure the delamination thickness. The effects of delamination thickness and frequency on the reflection coefficient are investigated via dividing integral region and reciprocity theorem. Some experimental validations are carried out on two aluminum-steel bilayered composite plates with different delamination thickness. Results: It is found the reflection coefficient increases linearly at first, then its rate of increase slows down gradually, and finally becomes stable, in theory. And the experimental results can verify the theoretical relationship between the reflection coefficients and the delamination thickness. Conclusion: The variation of reflection coefficient provides a reference for the measurement of delamination thickness in Stoneley-wave-based non-destructive testing. |
| first_indexed | 2024-03-08T17:16:51Z |
| format | Article |
| id | doaj.art-5f89022f58554872878aba63573534bd |
| institution | Directory Open Access Journal |
| issn | 2681-4617 |
| language | English |
| last_indexed | 2024-03-08T17:16:51Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Acta Acustica |
| spelling | doaj.art-5f89022f58554872878aba63573534bd2024-01-03T10:46:22ZengEDP SciencesActa Acustica2681-46172023-01-0175710.1051/aacus/2023054aacus230056Delamination thickness measurement based on Stoneley wave in bilayered composite structureZhou Tao0Li Ming-hang1Li Bing2https://orcid.org/0000-0001-6909-4752State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong UniversityXi’an Modern Control Technology Research InstituteState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong UniversityIntroduction: For composite structures, delamination usually occurs at the interface. Ultrasonic guided waves have been widely used to detect the delamination. However, most researches focus on the measurement of the delamination length along the interface, and the measurement of the delamination thickness is less studied. Method: In this paper, based on the characteristic that the Stoneley wave only propagates along the interface, the reflection coefficient of interaction between Stoneley wave and delamination is used to measure the delamination thickness. The effects of delamination thickness and frequency on the reflection coefficient are investigated via dividing integral region and reciprocity theorem. Some experimental validations are carried out on two aluminum-steel bilayered composite plates with different delamination thickness. Results: It is found the reflection coefficient increases linearly at first, then its rate of increase slows down gradually, and finally becomes stable, in theory. And the experimental results can verify the theoretical relationship between the reflection coefficients and the delamination thickness. Conclusion: The variation of reflection coefficient provides a reference for the measurement of delamination thickness in Stoneley-wave-based non-destructive testing.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2023/01/aacus230056/aacus230056.htmlultrasonic guided wavestoneley wavedelaminationreflection coefficientmeasurement |
| spellingShingle | Zhou Tao Li Ming-hang Li Bing Delamination thickness measurement based on Stoneley wave in bilayered composite structure Acta Acustica ultrasonic guided wave stoneley wave delamination reflection coefficient measurement |
| title | Delamination thickness measurement based on Stoneley wave in bilayered composite structure |
| title_full | Delamination thickness measurement based on Stoneley wave in bilayered composite structure |
| title_fullStr | Delamination thickness measurement based on Stoneley wave in bilayered composite structure |
| title_full_unstemmed | Delamination thickness measurement based on Stoneley wave in bilayered composite structure |
| title_short | Delamination thickness measurement based on Stoneley wave in bilayered composite structure |
| title_sort | delamination thickness measurement based on stoneley wave in bilayered composite structure |
| topic | ultrasonic guided wave stoneley wave delamination reflection coefficient measurement |
| url | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2023/01/aacus230056/aacus230056.html |
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