High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws
Guided ultrasonic wavefield propagation imaging (GUPI) is useful for visualizing hidden flaws in aerospace thin-walled structures, but the need for subjective signal processing involving three-dimensional Fourier transformation to increase the visibility of subtle flaws hinders its wider acceptance....
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Multidisciplinary Digital Publishing Institute (MDPI)
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/119248/ http://psasir.upm.edu.my/id/eprint/119248/1/119248.pdf |
| _version_ | 1848867915459198976 |
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| author | Lee, Shi Yn Romli, Fairuz Izzuddin Mazlan, Norkhairunnisa Lee, Jung-Ryul Harmin, Mohammad Yazdi Chia, Chen Ciang |
| author_facet | Lee, Shi Yn Romli, Fairuz Izzuddin Mazlan, Norkhairunnisa Lee, Jung-Ryul Harmin, Mohammad Yazdi Chia, Chen Ciang |
| author_sort | Lee, Shi Yn |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Guided ultrasonic wavefield propagation imaging (GUPI) is useful for visualizing hidden flaws in aerospace thin-walled structures, but the need for subjective signal processing involving three-dimensional Fourier transformation to increase the visibility of subtle flaws hinders its wider acceptance. A high-resolution wavenumber bandpass filter capable of consolidating subtle flaw-relevant information from a wide frequency band using only two-dimensional Fourier transformation was proposed. The filter overturns the long-standing belief that modes must be separated based on narrow-band data acquisition or processing to achieve high flaw visibility. Its characteristics and advantages were experimentally demonstrated through enhanced visualization of hidden wall-thinning flaws of a plate specimen. Its strength was further demonstrated through the first GUPI visualization of a partially loosened bolt, with unprecedented clarity to discern bolt tightness levels. The results conclusively proved that the proposed filter significantly enhances the resolution of GUPI within a structured processing framework. |
| first_indexed | 2025-11-15T14:44:05Z |
| format | Article |
| id | upm-119248 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:44:05Z |
| publishDate | 2024 |
| publisher | Multidisciplinary Digital Publishing Institute (MDPI) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1192482025-08-12T05:43:58Z http://psasir.upm.edu.my/id/eprint/119248/ High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws Lee, Shi Yn Romli, Fairuz Izzuddin Mazlan, Norkhairunnisa Lee, Jung-Ryul Harmin, Mohammad Yazdi Chia, Chen Ciang Guided ultrasonic wavefield propagation imaging (GUPI) is useful for visualizing hidden flaws in aerospace thin-walled structures, but the need for subjective signal processing involving three-dimensional Fourier transformation to increase the visibility of subtle flaws hinders its wider acceptance. A high-resolution wavenumber bandpass filter capable of consolidating subtle flaw-relevant information from a wide frequency band using only two-dimensional Fourier transformation was proposed. The filter overturns the long-standing belief that modes must be separated based on narrow-band data acquisition or processing to achieve high flaw visibility. Its characteristics and advantages were experimentally demonstrated through enhanced visualization of hidden wall-thinning flaws of a plate specimen. Its strength was further demonstrated through the first GUPI visualization of a partially loosened bolt, with unprecedented clarity to discern bolt tightness levels. The results conclusively proved that the proposed filter significantly enhances the resolution of GUPI within a structured processing framework. Multidisciplinary Digital Publishing Institute (MDPI) 2024 Article PeerReviewed text en cc_by_4 http://psasir.upm.edu.my/id/eprint/119248/1/119248.pdf Lee, Shi Yn and Romli, Fairuz Izzuddin and Mazlan, Norkhairunnisa and Lee, Jung-Ryul and Harmin, Mohammad Yazdi and Chia, Chen Ciang (2024) High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws. Aerospace, 11 (7). art. no. 524. pp. 1-22. ISSN 2226-4310 https://www.mdpi.com/2226-4310/11/7/524 10.3390/aerospace11070524 |
| spellingShingle | Lee, Shi Yn Romli, Fairuz Izzuddin Mazlan, Norkhairunnisa Lee, Jung-Ryul Harmin, Mohammad Yazdi Chia, Chen Ciang High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws |
| title | High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws |
| title_full | High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws |
| title_fullStr | High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws |
| title_full_unstemmed | High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws |
| title_short | High-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws |
| title_sort | high-resolution wavenumber bandpass filtering of guided ultrasonic wavefield for the visualization of subtle structural flaws |
| url | http://psasir.upm.edu.my/id/eprint/119248/ http://psasir.upm.edu.my/id/eprint/119248/ http://psasir.upm.edu.my/id/eprint/119248/ http://psasir.upm.edu.my/id/eprint/119248/1/119248.pdf |