Experimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing tools
<span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-bidi-font-size: 8.0pt;">Reliable damage detection is one...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Iranian Society of Vibration and Acoustics
2018-07-01
|
| Series: | Journal of Theoretical and Applied Vibration and Acoustics |
| Subjects: | |
| Online Access: | http://tava.isav.ir/article_33624_46ab46926b8426ae39a8850bb51998c8.pdf |
| _version_ | 1797229707237785600 |
|---|---|
| author | Maryam Shafiei Alavijeh Mohammad Hossein Soorgee |
| author_facet | Maryam Shafiei Alavijeh Mohammad Hossein Soorgee |
| author_sort | Maryam Shafiei Alavijeh |
| collection | DOAJ |
| description | <span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-bidi-font-size: 8.0pt;">Reliable damage detection is one of the most critical tasks in composite plate structures. Ultrasonic guided waves are acknowledged as an effective way of structural health monitoring (SHM). In this research, ABAQUS FE package is employed in order to develop a 3D finite element (FE) model to investigate the wave propagating features in a four-layer Woven Glass fiber (WGF) /epoxy composite plate. Dispersion curves have been extracted using semi-analytical finite element (SAFEM) in MATLAB. An experimental study has been done to obtain the sensitivity of the excitation frequency on the delamination detection problem. The Fast Fourier Transform (FFT), Butterworth filtering and the Continuous Wavelet Transform (CWT) signal processing methods have been utilized to extract a more accurate damage sensitive feature from experimental signals.<br />Calculations of amplitude reduction ratio (ARR) for both raw and filtered signals shows that increasing the excitation frequency, which means decreasing the wavelength, leads to increase in the ARR in an approximately linear manner for raw signals, while using the filtered signals for ARR extraction yields higher ARR, peaked at the tuned Lamb mode, which is F=330 kHz in the study. The Butterworth filtering provides larger damage sensitive feature compared to CWT method. Consequently, the ARR is a reliable and enough sensitive feature for delamination detection in composite plates, especially when extracted from filtered signals</span> |
| first_indexed | 2024-04-24T15:16:52Z |
| format | Article |
| id | doaj.art-34f7eeb7e58249c7b7b1b2333efbd077 |
| institution | Directory Open Access Journal |
| issn | 2423-4761 2423-4761 |
| language | English |
| last_indexed | 2024-04-24T15:16:52Z |
| publishDate | 2018-07-01 |
| publisher | Iranian Society of Vibration and Acoustics |
| record_format | Article |
| series | Journal of Theoretical and Applied Vibration and Acoustics |
| spelling | doaj.art-34f7eeb7e58249c7b7b1b2333efbd0772024-04-02T09:11:40ZengIranian Society of Vibration and AcousticsJournal of Theoretical and Applied Vibration and Acoustics2423-47612423-47612018-07-014214115210.22064/tava.2018.82451.110333624Experimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing toolsMaryam Shafiei Alavijeh0Mohammad Hossein Soorgee1Graduate Student, Faculty of Mechanical and Energy Engineering, Shahid Beheshti University, Tehran, IranAssistant Professor, Faculty of Mechanical and Energy Engineering, Shahid Beheshti University, Tehran, Iran<span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-bidi-font-size: 8.0pt;">Reliable damage detection is one of the most critical tasks in composite plate structures. Ultrasonic guided waves are acknowledged as an effective way of structural health monitoring (SHM). In this research, ABAQUS FE package is employed in order to develop a 3D finite element (FE) model to investigate the wave propagating features in a four-layer Woven Glass fiber (WGF) /epoxy composite plate. Dispersion curves have been extracted using semi-analytical finite element (SAFEM) in MATLAB. An experimental study has been done to obtain the sensitivity of the excitation frequency on the delamination detection problem. The Fast Fourier Transform (FFT), Butterworth filtering and the Continuous Wavelet Transform (CWT) signal processing methods have been utilized to extract a more accurate damage sensitive feature from experimental signals.<br />Calculations of amplitude reduction ratio (ARR) for both raw and filtered signals shows that increasing the excitation frequency, which means decreasing the wavelength, leads to increase in the ARR in an approximately linear manner for raw signals, while using the filtered signals for ARR extraction yields higher ARR, peaked at the tuned Lamb mode, which is F=330 kHz in the study. The Butterworth filtering provides larger damage sensitive feature compared to CWT method. Consequently, the ARR is a reliable and enough sensitive feature for delamination detection in composite plates, especially when extracted from filtered signals</span>http://tava.isav.ir/article_33624_46ab46926b8426ae39a8850bb51998c8.pdfDelamination DetectionComposite plateUltrasonic guided wavesAmplitude Reduction Ratio |
| spellingShingle | Maryam Shafiei Alavijeh Mohammad Hossein Soorgee Experimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing tools Journal of Theoretical and Applied Vibration and Acoustics Delamination Detection Composite plate Ultrasonic guided waves Amplitude Reduction Ratio |
| title | Experimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing tools |
| title_full | Experimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing tools |
| title_fullStr | Experimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing tools |
| title_full_unstemmed | Experimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing tools |
| title_short | Experimental and numerical study of delamination detection in a WGF/epoxy composite plate using ultrasonic guided waves and signal processing tools |
| title_sort | experimental and numerical study of delamination detection in a wgf epoxy composite plate using ultrasonic guided waves and signal processing tools |
| topic | Delamination Detection Composite plate Ultrasonic guided waves Amplitude Reduction Ratio |
| url | http://tava.isav.ir/article_33624_46ab46926b8426ae39a8850bb51998c8.pdf |
| work_keys_str_mv | AT maryamshafieialavijeh experimentalandnumericalstudyofdelaminationdetectioninawgfepoxycompositeplateusingultrasonicguidedwavesandsignalprocessingtools AT mohammadhosseinsoorgee experimentalandnumericalstudyofdelaminationdetectioninawgfepoxycompositeplateusingultrasonicguidedwavesandsignalprocessingtools |