Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source Actuation
Recently, the longitudinal, shear, and surface waves have been very widely used as ultrasonic wave-based exploration methods to identify internal defects of host structures. In this context, a noncontact nondestructive testing (NDT) method is proposed to detect the damage of plate-like structures an...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/725030 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832559530175627264 |
|---|---|
| author | Changgil Lee Seunghee Park |
| author_facet | Changgil Lee Seunghee Park |
| author_sort | Changgil Lee |
| collection | DOAJ |
| description | Recently, the longitudinal, shear, and surface waves have been very widely used as ultrasonic wave-based exploration methods to identify internal defects of host structures. In this context, a noncontact nondestructive testing (NDT) method is proposed to detect the damage of plate-like structures and to identify the location of the damage. To achieve this goal, a scanning laser source actuation technique is utilized to generate a guided wave and scans a specific area to find damage location more precisely. The ND:YAG pulsed laser is used to generate Lamb wave and a piezoelectric sensor is installed to measure the structural responses. The measured responses are analyzed using 3-dimensional Fourier transformation (3D FT). The damage-sensitive features are extracted by wavenumber filtering based on the 3D FT. Then, flaw imaging techniques of a plate-like structure are conducted using the damage-sensitive features. Finally, the plates with notches are investigated to verify the effectiveness and the robustness of the proposed NDT approach. |
| format | Article |
| id | doaj-art-fc2abd122cb14cf6ab6ae225e30133c5 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-fc2abd122cb14cf6ab6ae225e30133c52025-02-03T01:29:55ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/725030725030Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source ActuationChanggil Lee0Seunghee Park1 Department of Civil and Environmental Engineering, Sungkyunkwan University, Cheoncheon-Dong, Jangan-Gu, Suwon, Gyunggi-do 440-746, Republic of Korea Department of Civil and Environmental Engineering, Sungkyunkwan University, Cheoncheon-Dong, Jangan-Gu, Suwon, Gyunggi-do 440-746, Republic of KoreaRecently, the longitudinal, shear, and surface waves have been very widely used as ultrasonic wave-based exploration methods to identify internal defects of host structures. In this context, a noncontact nondestructive testing (NDT) method is proposed to detect the damage of plate-like structures and to identify the location of the damage. To achieve this goal, a scanning laser source actuation technique is utilized to generate a guided wave and scans a specific area to find damage location more precisely. The ND:YAG pulsed laser is used to generate Lamb wave and a piezoelectric sensor is installed to measure the structural responses. The measured responses are analyzed using 3-dimensional Fourier transformation (3D FT). The damage-sensitive features are extracted by wavenumber filtering based on the 3D FT. Then, flaw imaging techniques of a plate-like structure are conducted using the damage-sensitive features. Finally, the plates with notches are investigated to verify the effectiveness and the robustness of the proposed NDT approach.http://dx.doi.org/10.1155/2014/725030 |
| spellingShingle | Changgil Lee Seunghee Park Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source Actuation Shock and Vibration |
| title | Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source Actuation |
| title_full | Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source Actuation |
| title_fullStr | Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source Actuation |
| title_full_unstemmed | Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source Actuation |
| title_short | Flaw Imaging Technique for Plate-Like Structures Using Scanning Laser Source Actuation |
| title_sort | flaw imaging technique for plate like structures using scanning laser source actuation |
| url | http://dx.doi.org/10.1155/2014/725030 |
| work_keys_str_mv | AT changgillee flawimagingtechniqueforplatelikestructuresusingscanninglasersourceactuation AT seungheepark flawimagingtechniqueforplatelikestructuresusingscanninglasersourceactuation |